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...
In the 1970s, a 12 inch black and white TV cost 370 yuan, which is equivalent to how much it is now? After calculating, I was startled
Have you ever thought about how much it would cost to buy a 12 inch black and white TV in the 1970s? How much is the 370 yuan at that time worth now? Today, we will explore this interesting topic, taking you through time and space to experience the unique charm of that era.In the 1970s, a 12 inch black and white TV was priced at 370 yuan, which is equivalent to how much it is now? Firstly, we need to consider the impact of inflation...
Comparison of satellite photography between China and the United States, black and white photos of China, color photos of the United States, and Chinese technology not as good as the United States?
Ladies and gentlemen, please click in the upper right cornerFollowDon't miss out on exciting content, easy to view at any time.Wen | Da He You LiaoEditor | Big Core with MaterialsIn February 2002, Russia and Ukraine engaged in a war, with heavy artillery fire, and countries around the world were paying close attention to the direction of the situation...
Is the collective pressure on the White House to relax sanctions a conscience finding among the three major semiconductor companies in the United States? Intentionally sinister?
A very unusual news broke out the other day, but it seems that everyone is not paying much attention. But I think this matter is significant!It is reasonable to say that the three US semiconductor giants are the forces that most want to bring down China's Semiconductor industry, but these three semiconductor giants have collectively pressed the White House to relax the sanctions ban...
Why does the plane fart when there is a white smoke passing by? Most people don't know
When airplanes fly in the sky, some will pull out a long white smoke at the tail, while others will emit strange yellow smoke. What's the matter?Why does the plane emit smoke, and the colors are not the same?What is the white smoke generated at the tail of the plane?In fact, the phenomenon of airplanes flying over and leaving white smoke, commonly known asSmoking...
A recent photo of 51-year-old Ma Huateng was exposed, his body was extremely thin, his lips were white, and his eyes were lifeless like AI
The meaning of writing cannot be traced back to historyEditor | Unscrutableprefaceas forMa Huateng's name is well-known to everyone. He is a famous entrepreneur in China and also the founder of Tencent,He is naturally highly regarded in our daily lives, but he has always been relatively low-key, and naturally his photos are rarely circulated on the internet...