speed increasing gear train 增速齿轮副 ; 增速齿轮系
With the increasing of the speed of train, high reliability of the contact system is required.
随着列车运行速度的提高，对接触网系统可靠性的要求也越来越高。
As increasing the speed of the train and constructing the high - speed railway in China, the railway is becoming the first choice for evection and touring.
随着我国铁路的大幅度提速和高速铁路的兴建，铁路将成为人们工作和出游旅行的首选交通工具。
When the increasing of the speed and loading of the freight train, the heat load of the wheel will certainly increase, the life of the rail wheel may be influenced terribly.
随着车辆的重载化和高速化，车轮的热负荷进一步增加，对车轮的疲劳寿命带来重大影响。
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