列车载重

The thermal fatigue is one of mainly factors cause workpieces out of work such as Cast Hot Work Die Steel, heat exchanger tube, boiler tube, the wheel disk and blade of gas engine, high speed train break disk and heavy truck break hub.

热疲劳是热作模具、热交换管子和锅炉管子、燃气发动机的轮盘和叶片、高速列车刹车盘和重型载重汽车刹车毂等关键部件的主要失效形式之一。

With the development of high-speed and heavy-loading track, the quality of rail welding is desired to be more and more exigent.

随着列车速度与载重的增加，对钢轨焊接质量的要求越来越高。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。