The 13 kilometer tunnel has been repaired for 14 years! How many Chinese engineers have turned their green hair into white hair as tunnels turn into water curtains
You may have heard of it,China has a tunnel with a total length of only 13.39 kilometers, but it took 14 years to complete,What's going on here?This tunnel is the Shanyang Tunnel of the Dali Ruili Railway,It is known as the most difficult railway tunnel for surrounding rock excavation in China, and sometimes even becomes a "water curtain tunnel",Causing headaches for engineers...
New Research in Japan May Help Develop New Postsun Repair Products
In August 2023, France experienced scorching heat in late summer. A woman uses a small fan to cool down on a street in the southern French city of Nice...
Cryogenic solder paste technology is a major trend! Lenovo announces that it will make 80% of its equipment repairable
For Lenovo, it has been promoting the environmental protection and maintainability of equipment, and the previous low-temperature solder paste process is a major measure.Previously, Wang Huiwen, Vice President of Lenovo Group and Chief Quality Officer of Computers and Intelligent Devices, stated that the adoption of low-temperature solder paste technology would be the trend in the electronic product manufacturing industry...
Ten thousand oysters were thrown into the sea! UK actively repairs shellfish reefs
Replay suspend 00:07 / 00:14 direct seeding 00:00 Enter full screen 0 Click and hold to drag videos In the past week, the Wildlife Oyster Project team of the London Zoological Society has built a 7500 square meter "Oyster Reef" near the coast of Whitburn, consisting of over 750 tons of fan shells and stones. On October 2nd, the staff dropped another 10000 oysters in the water area...
The principle, structure, maintenance, and repair of the gearbox
Statement: This article is edited, organized, and produced based on online materials for public sharing. It is for learning and communication purposes only...
The reason for the failed launch of the starship was that Musk made a mistake by not repairing the launder
You can't imagine what caused the failed launch of a starship, and what caused three engines to fail to ignite as soon as they were ignited? Although it is bundled with 33 engines, the probability of three malfunctioning during takeoff and ignition is also too high, just like buying a 30 ring fireworks and three misfires are relatively rare, let alone a precision designed starship spacecraft.So what exactly is it about? Now it seems that the reason is that the starship launcher lacks a key facility, which is probably because Musk didn't come to repair it in a hurry...
Hisense's after-sales service needs to replace the motherboard for 600 to 700 yuan, and the customer repaired it for 25 yuan themselves. The customer complained that the video caused a stir
Hisense has become famous now, but what it produces is not a good name.The cause of the incident was that a Hisense customer had a blue screen on their TV, and then called Hisense's after-sales service to inspect it at their doorstep...
Have you ever had the experience of finding "official" and "authorized" when repairing a computer
Mr. Jin reported that he found a shop to inspect and repair the computer...