Yesterday, the pre-sale of train tickets for the May Day holiday began, marking the official opening of the holiday travel season. High-speed trains, as the first choice for modern people, not only demonstrate the progress of national science and technology, but also bring unprecedented convenience to people. The development of China's high-speed rail has been changing rapidly, from the initial speed of 200 kilometers per hour, to the stable 300 kilometers per hour, and then to the 350 kilometers of high-speed operation that has been achieved today, every step has witnessed the leap forward of China's railway technology.
It is exciting that the CR450 EMU prototype is expected to roll off the assembly line this year, and its operating speed will be increased from 350 kilometers per hour to 400 kilometers per hour, which is not only a simple digital growth, but also a strong proof that China's high-speed rail technology leads the world. CR is the abbreviation of China Railway, which represents the pride of China's railways, while the number 450 heralds its amazing experimental speed. The CR450 EMU, which has a speed of 400 kilometers per hour in commercial operation, will undoubtedly become a new speed benchmark for China's high-speed rail.
This improvement not only reflects the continuous progress of the technical capacity of the mainland railway, but also the demand for economic and social development. The speed of high-speed rail will further shorten the time and space distance between cities and strengthen the connection between regions. Studies have shown that as the speed of high-speed rail increases, so does its optimal travel distance. It is conceivable that when the high-speed rail reaches a speed of 400 kilometers per hour, the travel time between Beijing and Shanghai is expected to be further shortened, which will greatly promote the flow of people and the development of the regional economy.
At the same time, the accelerated development of high-speed rail has also stimulated the prosperity of related industries. The manufacturing of a Fuxing EMU involves many technical fields, from machinery, metallurgy to power electronics, etc., forming a huge industrial chain. This not only promotes the development of related industries, but also creates a large number of job opportunities.
However, the speed of high-speed rail did not happen overnight. It needs to be achieved by increasing the "physical strength" and reducing the "weight" of the train while ensuring safety. Behind this is the hard work and technological innovation of countless scientific researchers. For example, the CR450 EMU uses new materials such as magnesium alloy and carbon fiber to reduce weight and increase traction power to achieve higher speeds. The most critical thing is the improvement of the braking system, which must ensure a safe and stable stop at high speeds.
In general, the increase from 350 kilometers per hour to 400 kilometers per hour is not only a milestone in the development of China's high-speed rail technology, but also a vivid demonstration of the country's economic strength and scientific and technological level. This achievement will further enhance the competitiveness of China's high-speed rail in the international arena, and also bring more convenience and choice to people's travel.