Since the beginning of the summer, local areas have begun frequent frequent heavy rainfall, in addition to causing mudslides, floods, and large areas of water in some low-lying areas, which will also greatly affect people's travel and travel safety. So, how can the summer rainstorm be safe? What rainy traffic mistakes are there now? Xiao Bian hopes that through the following content, we can all have a deeper understanding of the safe driving in rainy days. The first point is that many people do not pay attention to the weather in advance and do not look at the weather forecast. You should look at the weather changes in recent days before you travel and make appropriate route planning. In this way, if you encounter heavy rain during the trip, you can choose to use the alternate route, or cancel the trip. The second point is that when the amount of rainfall is not very large, many vehicle owners drive according to the daily driving speed. They do not pay attention to the relevant driving precautions, and are often wiped off in the rainy days. However, in fact, when the rainfall is small or when it starts to rain, the road conditions are not very complicated all of a sudden. However, compared to daily life, the road surface is still more slippery, so it is still necessary to control the speed to a certain degree of safety. Range, if the speed is too fast, it may cause traffic accidents. The third point is that many car owners like to follow the car on a daily basis. However, if the rainy day is also close to the previous car, it will be prone to traffic accidents, and then cause a large area of ​​congestion. Because the braking force of the brake on the ground in the rain is smaller than usual, it needs a longer braking distance. The fourth point is that local areas with heavy rainfall will cause water accumulation, which will not only increase traffic safety problems, but also allow owners to not understand the underwater road conditions during driving. In addition, it will cause the vehicle to stall, and then a large area of ​​congestion. The wading ability of most vehicles is actually a general level. Therefore, we must wait and see when we meet the stagnant water road section, and we must be able to pass it after it is determined to be able to travel. Otherwise, the damage to the vehicle is also very large.
The formation of fluoride crystal mica is a sub-grade, and does not adsorb impurities. It was selected by the Chinese Academy of Sciences Environmental Biology Research Center Peking University, Tsinghua University, Shanghai Fudan University, Nanjing University, and more than 100 national research institutions and universities for Afm Substrate After (microscopy carrier wave), the relevant person said: Compared to natural mica, fluorite mica has better flatness and less adsorption impurities. The images observed in the analysis of the DNA structure, especially in the 1 nm to 100 nm scale, have observed surface interference fringes not found in the natural mica experiment, which are clearly dozens of times better than the natural mica Substrate. Experts involved in the experiment believe that the use of fluoride mica instead of natural mica as a substrate material is expected to catch up with the international level.
The main performance in the field of atomic force microscopy:
Beijing University of Technology, Zhejiang University, Shanghai Jiaotong University, Xi'an Jiaotong University, Harbin Institute of Technology, Jilin University, Northeast Normal University, Shaanxi Normal University, Sichuan University, China University of Science and Technology, Chongqing University, Tongji University, Shenzhen University
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