tractor power train 拖拉机传动系
wheel tractor power train 轮式拖拉机传动系
tractor power train hydraulic system 拖拉机传动系液压系统
train tractor 牵引车
wheel tractor-scraper power train 铲运机传动系
tractor-drawn train 挂车列车
The utility model discloses a train container tractor, which comprises a tractor, and the front end of the tractor is equipped with hooks.
本实用新型公开了一种火车货柜牵引车，它包括牵引车，在牵引车前端设 置有挂钩。
Using this system, the model laboratory table of tractor-trailer train can adjust the real-time speed, which is controlled by computer.
利用本系统可以实现汽车列车模型实验台对计算机控制速度的实时调节。
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