[car home Information] Recently, we learned from the official that the Extreme Yue 01 Long Life Edition will be officially launched on June 1st. The overall design of the new car is consistent with the existing version and will be improved in configuration. In addition, the long-life version will be equipped with a 100kWh battery pack from Contemporary Amperex Technology Co., Limited, and the CLTC will have a pure battery life of 720km.

　　Looking back at the appearance briefly, the new car adopts a closed grille design, and with the T-shaped headlight group, the overall sense of technology is full. In addition, the new car is equipped with 11 cameras +5 millimeter-wave radars +12 ultrasonic radars. The side of the car body adopts a suspended roof design and is also equipped with a hidden door handle. In terms of body size, the length/width/height of the new car are 4853/1990/1611mm respectively, and the wheelbase is 3000 mm. The tail uses a penetrating taillight, and the overall shape is very simple.

　　In terms of interior, the new car adopts a U-shaped steering wheel with full sense of technology, and is equipped with an 8295 chip and a 35.6-inch penetrating central control panel. In addition, the new car is equipped with the intelligent technology of Baidu Apollo and the intelligent driving chip of Orin X in NVIDIA. The space in the trunk of Extreme Yue 01 reaches 710L, which can be expanded to 2161L after the seat is laid down.

　　In terms of power, it is expected that the Extreme Yue 01 long-life version will be equipped with a single motor, with a maximum power of 200KW and a maximum torque of 343 N m. The long-life version is equipped with a 100kWh battery pack, and the CLTC cruising range can reach 720km. (Compile/car home yaoyu)

　　[News] On November 18th, 2006, it was officially listed at the auto show! Ren Yong, Deputy General Manager of Automobile Co., Ltd. and Deputy General Manager of Dongfeng Passenger Car Company, announced their specific configurations and prices, namely:1.8L XV distinguished type 161,800 yuan; 1.8XL fashion edition 162,300 yuan; 1.8L XL comfort type 156,800 yuan; 1.8L XE standard automatic transmission is 148,800 yuan; 1.8L XE standard manual gear is 138,800 yuan.

"Junyi officially listed"

　　As a strategic product positioned by Dongfeng Nissan in the family car market, Junyi is the first model in Nissan’s new generation of global cars, the first model in Nissan’s history to be launched in China before any other global market, and the first "leisure car with free space" in China’s automobile market.

"Junyi car"

　　In recent years, there has been a wave of recreational vehicles around the world. The so-called recreational vehicles are the combination of family cars and multi-purpose vehicles, which not only have the comfort and handling of family cars, but also have the extra space and security of multi-purpose vehicles. As a symbol of a new way of life, recreational vehicles are increasingly favored by people who pay attention to family harmony and enjoy life after work, and become synonymous with taste and quality of life.

Dongfeng Nissan Junyi

　　Junyi, a recreational vehicle with free space, was born to satisfy people who love life. Its stylish and smart exterior design, flexible and spacious interior space, and the new generation engine newly developed by Nissan with abundant power can fully meet the dual needs of leisure travel and work, and meet the friends who love a large and small group trip on weekends.

Editor of this article:

Write in front:This article is an original manuscript of Cheze, please indicate the source "Cheze" for reprinting, please do not infringe.

Enter the text:

On August 8th, Chery was officially listed. The new car is positioned as a medium-sized fuel SUV, which belongs to a higher-quality version of Chery. The price range is 129,900 yuan-174,900 yuan, providing 5 seats and 7 seats. In which: the standard version is 129,900 yuan; The comfort version is139,900 yuan; Deluxe edition is 149,900 yuan; The distinguished edition is 159,900 yuan; The 7-seat ring tower champion edition is 174,900 yuan. In short, it will be slightly lower than the pre-sale price. The highlight is the policy strength: the replacement enjoys a cash discount of 15,000 yuan, and the women’s volleyball guardian fund enjoys a cash discount of 10,000 yuan. The first car owner and used car enjoy a lifetime warranty.

Key point: Used cars are also guaranteed for life.

As for why he chose to push the fuel car again, Li Xue of Chery explained very hard: "It’s not that the fuel car can’t sell well, it’s that your fuel car can’t sell well."

As a reference, Chery sold 195,700 vehicles in July, up 30.1% year-on-year, and its overseas fuel export volume reached a peak. Chery believes that only by thoroughly understanding the basic skills of fuel can we get the highest score of new energy.

Chery has always adhered to the motivation of self-research. At the press conference, Li Xueyong also publicly stated that Chery is about to release a high-performance engine with an efficiency of 48%. What is the concept of 48%? At present, the highest I remember is about 46%.

Go back to the model itself. The model itself is the "top match" in the Tiggo 8 series, and its size configuration and performance are superior to those of the same family: Tiggo 8, Tiggo 8 PLUS and Tiggo 8 PRO.

The whole vehicle is built on the super hybrid platform of Chery Mars architecture and developed according to the global five-star safety standards, which meets both domestic and global requirements.

The whole vehicle is made of high-strength steel (85%) and hot-formed steel (21%), equipped with the only far-end airbag of the same class and 19 active safety configurations, reaching L2.5 intelligent driving assistance capabilities, such as rear cross collision braking, rear approach warning, lane keeping, lane departure assistance, blind zone monitoring, door opening warning, traffic sign recognition, front collision warning and automatic emergency braking, etc.

The dimension part has a length, width and height of 4795/1930/1741mm and a wheelbase of 2770mm, which is one circle larger than that of Tiggo 8 and is exactly the same as that of Tiggo 8. The seating layout is available in 5-seat and 7-seat (5+2) versions. The seats in the second row and the third row of the 7-seat version all support electric full flat down, and the official announcement can achieve a maximum capacity of 2065L!

The interior design is also highly referenced to Fengyun T9: equipped with 10.25-inch full LCD instrument panel, 15.6-inch central control screen, built-in Qualcomm 8155 chip, supporting Apple CarPlay+ Huawei HiCar.

The passenger seat is the "Queen’s seat" (zero gravity seat), which supports heating/ventilation/massage.

The new car is equipped with 2.0TGDI Kunpeng turbocharged engine, Miller cycle, second generation intelligent thermal management system, scissor double balance shaft and 350bar ultra-high pressure direct injection system. The advantage is that it is both fierce and fuel efficient.

The maximum power of the power system is 187 kW (254 HP) and the maximum torque is 390 Nm, which is almost equal to the performance of more than 600,000 2.0T engines (258 HP).

It is worth mentioning that this car matches the full-stack self-developed Kunpeng 8AT gearbox. At present, apart from Changan CS75 PLUS, few domestic cars within 200,000 yuan will be willing to use 8AT gearbox, which is generally dual clutch.

In terms of passability, the top gear provides the choice of four-wheel drive system. The four-wheel drive system has an intelligent control torque manager, which can realize the torque distribution of the front and rear axles, and provides three basic driving modes+four off-road modes, a total of seven driving modes.

Draw a key point: self-developed motivation, self-developed gearbox and self-developed four-wheel drive. Chery can be said that among domestic brands, it is rare for the three major fuel products to be so thoroughly researched and made by themselves.

Ok, the question is coming. Which version will you choose from so many versions?

speed up apply the brakes oil consumption second rice rise A New Generation of Good Samaritan Tested 2013 Jetta 1.6L Automatic Transmission Evaluation Editor-Liang Wei:

We have tested the new Santana before. Now I don’t know what to say about the new Jetta. Everyone is already familiar with every detail. I don’t know why, the performance test results of the new Jetta are much slower than that of the new Santana. Perhaps it is the differentiation treatment specially made by Volkswagen Group for the two products. We can only understand it this way. In addition, as an entry-level model, the new Jetta is still a little expensive, and some discounts will be more cost-effective, so we can wait.

Evaluation Editor-Hu Zhengyu:

Finally put the new Jetta to the test. The public has created such a large number of regular troops with uniformity and no personality to fight, and they are good at doing business.

Evaluation Editor-Luo Hao:

There is nothing to say to the same family of family cars. It won’t let you down, but it will never give you any surprises, that’s all.

[car home Hangzhou Preferential Promotion Channel] brings you the latest news. At present, Land Rover, a high-profile luxury SUV, is carrying out an unprecedented preferential activity in Hangzhou. Car buyers can enjoy a cash profit of up to 300,000 yuan, which makes this high-end model with a starting price of 718,000 yuan have a more attractive market performance. If you are interested in Range Rover Sport Edition, you must grasp this moment and click "Check the car price" in the quotation form to get more generous car purchase discounts.

Range Rover Sport Edition shows the perfect combination of luxury and sport with its unique design. The front face is tough, and the iconic air intake grille adopts a bold family-style design with distinct layers, giving the vehicle a high degree of recognition. The streamlined design on the side of the car body and the sculptural waistline set off each other, showing strength and movement. Overall style, Range Rover Sport Edition not only pursues performance, but also pays attention to the exquisiteness and elegance of details. It is a model of luxury and sportsmanship.

The side lines of Range Rover Sport Edition show the perfect combination of luxury and strength. The body length is 4946mm, the width is 2047mm, the tall body design is 2820mm, and the wheelbase is 2997mm, which ensures the spacious and comfortable interior space. The front and rear wheel tracks are 1702mm and 1704mm respectively, and the precise layout gives the vehicle excellent driving stability. Tyre size chooses 255/60 R20 with dynamic rim design, which not only improves the driving performance, but also adds the aesthetic feeling of movement and strength visually.

The interior design of Range Rover Sport Edition is full of luxury and technology. Exquisite leather and leather materials wrap the steering wheel, which not only brings a comfortable grip, but also is equipped with electric up and down+front and rear adjustment function to ensure that the driver can easily find the most comfortable position. The central 13.1-inch large central control screen stands in front of the driver’s line of sight, integrating multimedia system, navigation, telephone, air conditioning and skylight control, with convenient operation and clear display.

In terms of seats, whether it is imitation leather or leather material, it shows a high degree of comfort. The main and co-pilot seats support four-way adjustment, including front and rear, backrest, height and lumbar support, to ensure the comfort of long-distance driving. The front seats are also equipped with heating and ventilation functions, as well as electric seat memory, which is convenient for drivers and passengers to customize their sitting posture according to their personal preferences. The second row of seats also has backrest adjustment, and the space is flexible. In addition, the rear seats support proportional tilting, which provides convenience for loading large items. The whole interior design takes into account luxury and practicality to meet the different needs of drivers and passengers.

Range Rover Sport Edition is equipped with a powerful 3.0T L6 engine, with a maximum power of 265kW and an astonishing peak torque of 500 N m.. This power heart is matched with an 8-speed automatic manual transmission, which ensures that the vehicle can provide smooth power output and excellent handling performance in various driving situations.

Generally speaking, the owner of car home has given a unique view on the appearance change of Range Rover Sport Edition. Although he thinks it is slightly mellow compared with the previous generation, it does not lose the flavor of science and technology. As a luxury SUV, Range Rover Sport Edition is constantly evolving to meet the needs of consumers while meeting modern aesthetic needs. This evolutionary process is undoubtedly part of its charm.

Recently, Extreme Yue Auto officially announced the opening of its brand-new model-pre-sale, with the pre-sale price starting from 215,900 yuan. This is the second model launched after Extreme Yue, which is positioned as a medium and large-sized pure electric car. The brand of Extreme Yue is jointly built by Baidu and Geely Holding Group. With innovative intelligent driving and advanced technology configuration, Extreme Yue 07 will be officially launched on September 10. Now let’s take a look at the details of this car.

appearance design

In the front face of the Extreme Yue 07, the new car adopts a closed grille and a penetrating light strip design, and the headlights are seamlessly connected with both sides of the front of the car. It is worth mentioning that the Extreme Yue 07 is equipped with an intelligent AI headlight system to support a variety of interactive experiences.

The side of the car body adopts the sliding back shape and hidden door handle, and is equipped with borderless doors. The length, width and height of the new car are 4953/1989/1475 mm and the wheelbase is 3013 mm, which is in line with the positioning of medium and large cars.

The rear part adopts a rounded design style, and the penetrating taillights are combined with the liftable tail, which will automatically rise when the vehicle speed exceeds 95 km/h.

Interior decoration and technology configuration

?The interior design of Extreme Yue 07 is based on simple atmosphere, and there are almost no physical buttons in the car. Instead, it is a 35.6-inch large screen, which combines the central control display with the dashboard. The steering wheel adopts a U-shaped half-width design. In addition, the new car is also equipped with a rear display screen and ambient lights.

It is worth noting that the Extreme Yue 07 is equipped with a newly upgraded SIMO 2.0 intelligent cockpit system. Based on the native AI big model architecture, the system not only supports speech recognition, but also can accurately recognize instructions through lip language, even if the network is not smooth, it can run efficiently. This system is not limited to the operation of car functions, but also supports the answers to life questions such as house price inquiry and restaurant recommendation, and even supports the natural chat function.

In addition, the HUD head-up display function does not use the traditional front windshield projection method, but combines the lane-level navigation map and intelligent driving perception to convert real-time road conditions into virtual images and display them on the integrated central control screen, thus not affecting the driving vision.

power system

In terms of power, Extreme Yue 07 will provide two configurations of single motor and dual motor. The maximum power of the single-motor version is 200kW, while the dual-motor version has a comprehensive power of 400kW. Both power versions are based on the vast architecture of Geely SEA and provide two battery specifications, namely, 71.4kWh and 100kWh.

Intelligent Drive

Another highlight of Extreme Yue 07 is its ASD(Apollo Self Driving) advanced intelligent driving system, which is a set of pure vision L4 automatic driving technology jointly developed by Baidu Apollo and Extreme Yue. The system provides 508 TOPS AI power through dual NVIDIA DRIVE Orin chips, and is equipped with 28 intelligent sensors, including 11 high-definition cameras, 12 ultrasonic radars and 5 millimeter-wave radars.

Extreme Yue has introduced a limited-time preferential price of 4,999 yuan for new and old users. In addition, the new car also offers a subscription option of 599 yuan per month, and all new and old car owners are given free ASD smart driving bags for three months.

summary

For consumers, while maintaining a high cost performance, Extreme Yue 07 also provides rich intelligent configuration and excellent power performance, which is especially suitable for users who pursue a sense of technology and intelligent experience. As the listing date approaches, the market performance of Extreme Yue 07 is worth looking forward to.

From the first agricultural tractor to the first minivan, and then to the first new energy vehicle, Wuling has always actively responded to the needs of the times and the people, and practiced the belief that Wuling will build whatever the country needs and what the people need.

Nowadays, the development of new energy vehicle market is becoming more and more mature, new models of various brands emerge one after another, and people’s needs are becoming more precise and diversified. A single scooter can no longer meet the modern consumers’ pursuit of personalized travel and colorful life. When the people have needs, Wuling will act! On September 20th, Wuling Automobile announced the official launch of its five-seat ——SUV, a large-space pure tram. The new car has a good performance in appearance, space and battery life, and is highly anticipated by the market.

This debut, the five-seat version of Wuling Binguo SUV brought users four high-energy car colors: milk coffee white, glass red, storm grey and aurora green. Among them, pure milk coffee white and lucky glass red are the life’s core monuments "skin" of this new car. The bright body colors combined with the sharp and powerful car body lines show the dynamics and elegance of the whole car to the fullest. In addition, the new car also adds the design of suspended color separation roof and highly recognizable sharp-edged headlights and taillights, which are super "top" and super recognizable.

What’s more noteworthy is that the five-seat version of Wuling Bingo SUV also optimizes the wind resistance of the whole vehicle by 13% through the streamline design of the body, combined with local details such as large-angle windshield, wind-blade front air curtain, 15-inch aluminum alloy wind-breaking wheel, and inverted tail, thus increasing the cruising range of 20 kilometers.

The five-seat version of Wuling Binguo SUV is 4090mm* long * 1720mm* wide * 1575mm high. With an ultra-long wheelbase of 2610mm, the longest distance between two rows of seats in the same class is 882 mm. The space design with great humanistic care takes care of the riding experience of the cab and the rear passengers at the same time, and the A0-class body size brings users "A+ class" space enjoyment.

In addition, the power layout of the new car leaves more space for the rear. This ingenious layout optimization makes the space of the conventional luggage compartment of the Wuling Bingo SUV five-seat version reach 350L L. If there is a need to carry large items for travel, the user can put down the rear seat, which can free up 1,450 L of super storage space, not to mention placing large suitcases, camping equipment and even fishing tackle, which can meet the storage needs of users for multi-scene travel.

In addition to the new design and leapfrog space experience, the five-seat version of Wuling Bingo SUV also provides users with more endurance options. There are three versions of the new car: 330km, 401km and 510km. The official guide prices are 75,800 yuan, 84,800 yuan and 95,800 yuan respectively, and the prices are as close to the people as ever.

In addition, the five-seat version of Wuling Bingo SUV also performs very well in terms of energy replenishment. It only takes 30 minutes to charge from 30% to 80%, which can fully meet the fast-paced life and travel style of modern people.

As a pillar enterprise in the domestic new energy vehicle market, SAIC-GM-Wuling has contributed many excellent works. Before that, there was the miniev, which was the world’s top seller of new energy vehicles, and after that, there was Wuling Bingo, which lit up countless people’s colorful trips and was awarded the honor of "micro-electricity leader". I believe that the five-seat version of Wuling Bingo SUV, which stood at a higher starting point, will go further. Let’s look forward to the market performance of this car.

[business card]

"Jinghua" shield machine, with a diameter of 16.07 meters, a length of 150 meters and a weight of 4,300 tons. Lying horizontally, it is even higher than five stories … It looks heavy, but it has high skills: it is a good hand at digging holes and a sharp weapon for tunnel construction, like an underground dragon, such as a "steel pangolin". The shield machine developed by Tiejian Heavy Industry, from running to leading technically, has become another "Made in China" business card after "China High Speed Rail".

Hunan Daily All-Media Reporter Cao Xian Correspondent Hu Qing

In Tongzhou District, Beijing, the west tunnel of the East Sixth Ring Road reconstruction project is under construction. On the ground, beijing-harbin railway got on the high-speed train and galloped by, but the passengers didn’t notice that a "steel behemoth" was steadily driving tens of meters underground.

On April 12, 2022, China’s largest diameter shield machine "Jinghua" successfully crossed the Jingha high-speed railway line. This behemoth plunges underground, causing no disturbance to the ground buildings, and controlling the surface settlement in millimeter level, creating a miracle of the construction of super-large diameter shield machines in China.

This "Jinghua" shield machine rolled off the production line in Changsha No.1 Industrial Park of China Railway Construction Heavy Industry Group Co., Ltd. on September 27th, 2020. Shield machine is known as "the king of construction machinery". China was once a zero foundation, and its technology and market were controlled by people. Nowadays, the domestic brand shield machine represented by China Railway Construction Heavy Industry has occupied two-thirds of the global market share.

Over the past 10 years, how did China shield machine strike back brilliantly?

1 "2 mm" see skill-

Buried in stealth, amazing years

Shield tunneling relies on many cutter heads embedded in the front circular cutter head. The cutter head rotates slowly, like a big mouth, and the cutter head is like a tooth, which "chews up" rocks and sand and transports them through the pipeline.

Shield construction is to dig tunnels under the ground, and there is no need to "open the belly" on the ground, which has little impact on road traffic. In the underground reconstruction part of Beijing East Sixth Ring Road Reconstruction Project, the tunnel shield construction section is about 7.4 kilometers long, and the excavation section size is six times that of the general subway tunnel.

"It is the first time in the world for a shield machine with such a large diameter to dig such a long distance at a time." Railway Construction Heavy Industry undertook the task of developing "Jinghua", and the R&D team faced unprecedented challenges.

The underground space environment is complex, and more than 50 risk sources are densely distributed on the ground. Super-large diameter, super-long distance, super-deep soil cover and super-sensitive environment, some authoritative people in the industry are worried: "Will domestic equipment work?"

Without two brushes, I can’t do it.

In the process of tunneling, the shield machine faces all kinds of interference caused by earth pressure, underground water pressure, mud in and out, and rocks in the way. The R&D team adopted a high-precision gas-liquid balance control technology, and an air cushion cabin was set behind the cutter head cabin, so that the pressure was indirectly transmitted instead of directly impacted. Figuratively speaking, it is the increase of pressure and exhaust; Sudden pressure drop, replenishing qi, and instantly eliminating pressure fluctuation.

"The underground’ movement’ is big, and what to do on the ground is not affected." Zhang Shuaikun, vice president of Railway Construction Heavy Industry Roadheader Research and Design Institute, said that during the excavation of Jinghua, the surface settlement was always controlled within 2 mm.

By June 1, the "Jinghua" had broken through 3,668 meters, and the excavation was more than half successful. In the meantime, a new record of 542 meters in a single month was created. "Whether it is size or technology application,’ Jinghua’ has reached the world’s leading level." Zhang Shuaikun said proudly.

On the network platform, the short video about "shield machine" has been viewed by millions of people. While enjoying the convenience of cars and subways passing through tunnels, people want to know why tunnels are dug quickly and well now.

In the 1950s, China put forward the plan to build a subway in Beijing first. The first phase of the 23.6-kilometer-long Beijing subway project took more than 10 years from construction to trial operation.

Before tunnel construction in our country, the traditional manual drilling and blasting method was used to drill, shoot and dig stone slag, which cost a lot of manpower, material resources and even life. "Compared with the current shield machine that digs hundreds of meters every month, at that time, it was greedy every day, and it could not dig dozens of meters in one month." He Qiping, the 58-year-old chief technology officer of China Railway Construction Heavy Industry, has worked as a tunnel for most of his life and experienced great changes in the industry. He said with deep feeling that it would take at least 100 years to build all subway lines in China at the same speed as that of Beijing Line 1. Because China has its own shield machine, the speed of subway construction has been accelerated for more than 60 years.

Compared with the predecessors in the industry, Zhang Shuaikun, born in 1980s, is lucky. His WeChat avatar is "Jinghua", and the blank space of the photo reads: Burying your head and sneaking, amazing years. These eight words have become the best annotation of the largest diameter shield machine made in China, and also a vivid portrayal of countless hard-working scientific researchers and industrial workers.

2 From "1" to "1000+"-

The "printing machine" of foreigners has become the "competitive machine" of China people.

Seen from the satellite perspective, the super factory of Tiejian Heavy Industry in Changsha, Hunan Province is a shining new industrial landmark.

Ten years before the birth of "Jinghua", Railway Construction Heavy Industry produced the first EPB shield machine named "Pioneer 19".

"Pioneer" broke the game in one fell swoop. "Let the’ foreign shield’ with an average selling price of about 150 million yuan quickly reduce its price by 30% in China." Liu Feixiang, Party Secretary and Chairman of Tiejian Heavy Industry, said.

In the 1990s, China imported shield machines from abroad for the construction of large-scale tunnel projects. Wu Min, vice president of Railway Construction Heavy Industry Roadheader Research and Design Institute, used to drive foreign equipment in tunnel construction units, and he often wondered "when can the domestic shield machine be used".

Foreign shield machines are expensive to sell and the service is more expensive. Foreign companies hold key technologies in their hands, charge high service fees, wait until working days to solve problems, and often refuse to accept the rectification and optimization suggestions of domestic contractors.

The rapid development of China is changing with each passing day. The high-speed rail and subway network are accessible, and water conservancy and mine construction are speeding up. Large-scale engineering equipment like shield machine is too important.

You can’t always be led by foreigners. In 2008, Tiejian Heavy Industry decided to specialize in customized underground engineering equipment.

Supported by the "863" project of the Ministry of Science and Technology, in 2012, China Railway Construction Heavy Industry launched an attack on the first domestic rock tunnel boring machine (TBM). Different from the shield machine that eats soft rock and gravel, the rock tunnel boring machine takes hard rock as the "next meal", which is also the weak link of the autonomy and localization of tunnel boring equipment in China.

Knowing this news, Wu Min gave up his job with higher income at that time and devoted himself to the development of the first domestic TBM.

From scratch, grope forward. For twenty or thirty big parts such as cutterhead, shield, main beam support and propulsion, a research team is set up for each part. Every data is accounted for over and over again, and it is pushed over and over again. More than 3,000 mechanical drawings have been audited.

At the end of 2014, the first domestic open TBM was rolled off the assembly line of China Railway Construction Heavy Industry. In participating in the construction of water supply project of Jilin Province, the highest monthly footage of this TBM reached 1,209.8 meters, and the bid was completed more than one year ahead of schedule, leaving the foreign brands that competed in the same field and ranked first in the world at that time far behind. "Very uplifting!" Wu Min is quite proud of this product.

Today, there are 40 shield machine production lines in Changsha No.1 and No.2 Industrial Parks of Railway Construction Heavy Industry, which has become the largest underground engineering equipment manufacturing base in the world. Over the past 10 years, more than 1,000 roadheader machines have been sent from here. The shield machine, once regarded as a "printing machine" by foreigners, has now become a "competitive machine" for China people.

Great country heavy weapon serves great country project. The western water conservancy project, with a maximum buried depth of 2268 meters, is all over the altered rock belt. The variable diameter open TBM solves the "stuck machine" problem that plagues the world excavation industry and successfully breaks through the barrier. In the Pearl River Mouth Tunnel of Shenjiang Railway, "Shenjiang No.1" advanced to the depth of 106 meters, helping to build a half-hour living circle in Guangdong-Hong Kong-Macao Greater Bay Area …

3 From "Apprentice" to "Teacher"-

China equipment accelerates the equipment world.

In the early summer, on the west bank of Xiangjiang River in Changsha City, the super-large diameter shield machine "Xingsheng" is being debugged, and the trip across Xiangjiang River will be started soon, which will help alleviate the traffic bottleneck in the central city of Changsha.

From Beijing to Changsha, Railway Construction Heavy Industry has developed 6 sets of shield machines with super-large diameter of 15 meters and above. The core technology of shield machine in China has become more and more mature and powerful.

Shield machine integrates advanced technology in many fields, such as machinery, electricity, liquid, light, control, engineering, etc. Its manufacturing process is complex, and its degree of autonomy directly reflects the industrial level and industrial chain perfection of a country.

Size, there are "super" and "tiny". A shield machine with a diameter of only 0.5 meters, "the sparrow is small and complete."

Technology, from running to part leading. Horizontal excavation, vertical shaft, inclined shaft, various modes and special-shaped sections are not a problem.

Market share from supporting role to leading role. The output of rock tunnel boring machine of China Railway Construction Heavy Industry has been the first in China for five consecutive years. The domestic brand shield machine represented by China Railway Construction Heavy Industry has climbed to more than 95% in the domestic market share, accounting for two-thirds of the global market share.

People have no me, people have my advantages, and China roadheader strode out of the country.

In 1950s, Soviet experts came to China to help Beijing plan the first subway line. Sixty years later, five shield machines from China Railway Construction Heavy Industry participated in the construction of the southwest section of the third interchange ring road of Moscow Metro, and were affectionately called "five golden flowers" by the locals.

The "Five Golden Flowers" proudly bloomed in snow, which overcame the extremely cold environment of minus 30 degrees Celsius, set a new record for local subway construction and became a model for overseas construction of shield machines in China.

On the eve of the Spring Festival in 2022, after more than seven hours of overseas connection, Railway Construction Heavy Industry finalized cooperation with an Italian construction company. China shield machine is about to enter the Italian market for the first time.

"Hundreds of technical parameters are compared one by one, and the attitude of the other party gradually changes from distrust to trust." Zhong Qing, an engineer from the Research and Design Institute of Railway Construction Heavy Industry Roadheader, said that China shield machine has comprehensive advantages in terms of price, performance, quality and service, and is more competitive than foreign brands. He said with emotion, "I used to be a teacher, but now I am a teacher." In less than 20 years, the change is too great. "

The reporter walked into the assembly workshop of Railway Construction Heavy Industry, but saw a shield machine being hoisted and tested in an orderly manner. The base label showed that the destination was Sri Lanka, India and Singapore. In the first quarter of this year, the amount of new overseas contracts signed by Railway Construction Heavy Industry increased by 9 times year-on-year.

Along the "Belt and Road", China equipment accelerates the equipment world. In 2021, Tiejian Heavy Industry ranked among the top 30 global construction machinery manufacturers and ranked first among the top 5 global full-face tunnel boring machine manufacturers.

[Youth Watch]

Move the classroom into the workshop

I have a "billion-point" heart.

Deng Kangwei (a junior majoring in urban underground space engineering in Central South University)

It is accidental to choose the major of urban underground space engineering. On the weekend of my freshman year, I read several books related to urban underground space in the library and learned that the use of above-ground space is becoming increasingly saturated, and underground space will become the "main battlefield" for urban construction. So, when I subdivided my major, I chose this major.

This semester’s professional courses often talk about shield machines. As a young observer of Hunan Daily, I came to Tiejian Heavy Industry to observe the shield machine at close range. For me, it is like moving the classroom into the workshop and learning the principle and structure of the shield machine in front of books and drawings in class. It is a completely different experience.

It took me six hours to assemble the toy of shield machine building blocks presented by the enterprise, so I can experience the fun of "manufacturing" a shield machine. In fact, there are more than 30,000 large and small parts on a shield machine. From conventional diameter to the development of super-large diameter shield machine, technicians have devoted themselves to tackling more than 2900 days and nights.

I was deeply impressed by this statement that the shield machine has changed from a "printing machine" for foreigners to a "competitive machine" for China people. Scientific researchers have gnawed at the "hard bones" of core technologies, and industrial workers have developed the hard skills of striving for perfection, so that China’s independent research and development of shield machines is no longer subject to people, from zero foundation to mastering key core technologies, leading the world.

Walking into the super factory of shield machine, I saw the big scene of shield construction and became a "shield driver" as I wished. This "immersive experience class" made me feel the innovative power of hard-core technology, which made me feel "a little bit" and made a different plan for the future.

Urban underground space contains unlimited development space, and the future awaits us to change and create with broader knowledge and broader horizons.

　　[Global Network Report] According to Russian media reports such as RIA Novosti and Tass, the car of zahar Prilepin, a Russian writer and co-chairman of the "Just Russia-Patriots-For Truth" party, exploded in Nizhny Novgorod on the 6th, killing the driver and injuring Prilepin. Oleg Osipov, vice-chairman of the Russian Federal Security Council and assistant to Medvedev, chairman of the United Russia Party, said on the same day that Medvedev said in a telegram sent to Prilepin that the explosion in his car was a "despicable attack by Nazi extremists".

Medvedev, data map, from RIA Novosti

　　According to the Tass news agency, Osipov said on the same day that Medvedev told Prilepin in a telegram, "I am very angry to learn that Nazi extremists have launched despicable attacks on you and people close to you. On behalf of the United Russia Party and in my own name, I would like to express my sincere support to you at this difficult time. I would like to extend my deep condolences to the family of your colleague who died as a result of this shameless crime. "

Prilepin, data map, from RIA Novosti

　　According to the report, Medvedev also said that Russia will not let such crimes go unpunished. "We are dealing with a cowardly enemy who tries to intimidate us. The goal is the true patriots of our country, those who do their best to serve the motherland and those who are doing their best to defeat Ukrainian neo-Nazism. These crimes will not go unpunished. " "Those who commit these crimes and their ideological supporters will not escape punishment," he said. He also wished Prilepin a speedy recovery and good health.

The picture of Prilepin’s car after the explosion in Nizhny Novgorod on May 6, from the Russian News Agency.

　　According to previous media reports, on the 6th local time, in Nizhny Novgorod, Russia, the car of zahar Prilepin, co-chairman of the Russian "Just Russia-Patriots-For Truth" party, exploded, killing the driver and injuring Prilepin himself. The Russian Ministry of Internal Affairs said on the same day that the suspect suspected of making this car bombing has been arrested. He is a man born in Ukraine, and the relevant Russian departments have characterized the case as a "terrorist attack". The investigation commission of the Russian Federation said that the suspect had admitted that he was instructed by the Ukrainian intelligence service. According to Ukrainian media reports, the Ukrainian National Security Agency said on the same day that it could not confirm or deny its participation in the car bombing.

　　　　The National Day Golden Week is coming, and the auto market will also usher in a small climax of rising sales. The Geely Global Hawk GX7 2.4L, which was released at Chengdu Auto Show, won the favor of many consumers immediately after it went on the market. The reason is not only because it only sells for 119,900 ~ 129,900 yuan, but also because it is equipped with the advanced power combination of CVVT engine and +6AT transmission. With such a high cost performance, this car will undoubtedly become the focus of the 11th sales season!

　　　　6AT automatic manual transmission, the best handling experience of the same class car.

　　　　As the first autonomous SUV equipped with 6AT transmission within 150,000 years, this killer will bring a very high purchase index to the Global Hawk GX7. This 6AT comes from DSI Australia, the second largest transmission manufacturer in the world. With the widespread adoption of 4AT in its class, Geely Automobile broke the monopoly of joint venture brand on 6AT, and GX7 far surpassed its class in terms of handling, performance and fuel consumption.

　　　　With the addition of 6AT with two transmission ratios, the gear ratio between gears is more reasonable, which makes the whole shift process smoother and smoother. At the same time, the setting of more gears makes the gear ratio range wider, which not only effectively suppresses the body shake at the start, but also reduces the engine speed during high-speed cruising, which significantly improves the fuel economy. The shift response of this transmission is only 0.3 seconds, which greatly reduces the power loss caused by shifting, and makes the start acceleration more rapid. Overall, the 6AT of Global Hawk GX7 is the best in its class in terms of comfort, handling and fuel economy.

　　　　2.4L CVVT engine, giving consideration to power and fuel consumption.

　　　　The engine compartment of the Global Hawk GX7 embodies the mature and perfect assembly technology of Geely Automobile. The engine compartment is arranged neatly and orderly, and the engine is equipped with a plastic cover. The model of this 2.4L engine is JLD-4G24, which is independently developed by Geely. The maximum power is 119kw and the maximum torque is 220N&bull. M, the parameters are in the mainstream level in the same class car, and with the cooperation of 6AT with excellent transmission, it can bring 10% power improvement.

　　　　Although most independent manufacturers are weak in the research and development of large-displacement engines, Geely once again uses technology to justify its own cars. This engine adopts aluminum cylinder block and CVVT technology, which can control the closing time of intake valve to increase air intake, make gasoline burn more fully and improve engine efficiency. Generally speaking, this engine has achieved a good balance in terms of power and fuel economy.

　　　　At present, there are two models of GX7 2.4L: 119,900 comfort model and 129,900 administrative model. The latter is more abundant in airbags and multimedia equipment than the former, with skylight and seat heating. Consumers who want to experience the extraordinary control experience of CVVT+6AT can choose the comfort type, while consumers with higher comfort requirements can choose the executive type. For the autonomous SUV at this price, the scientific and technological value of Global Hawk is the highest at the same level. I believe no one can resist the temptation of CVVT+6AT.

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Domineering attack GX7 with 6AT subverts the market.

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