The relative speed between driving wheel and pin rail varies with sinusoidal function. 2 When the torque of driving wheel is unchanged, the traction force varies with the...

当驱动轮转矩不变时，牵引力随啮合点的变化而呈周期性变化。每个轮齿受到的销轨反力是脉动的，脉动幅值较大。

youdao

Can also take the old Chengdu-Chongqing Highway, but turn more traffic, more people flow, to be cautious medium-speed driving, travel time takes about 2 hours and 30 minutes.

也可走老成渝公路，但弯道较多，车流、人流量较大，需中速谨慎驾驶，行车时间约需2小时30分钟。

youdao

If we were driving at a speed of 100 Li an hour, we would have arrived there 2 hours ago.

如果我们的行车速度每小时100里，两小时以前我们就会到达那里了。

youdao