1. an area having a network of railway tracks and sidings for storage and maintenance of cars and engines. 
   有一个铁路网的地方，并在轨道和侧线上对车厢或发动机进行调试、贮放和维修。
2. automatic measurement of tracks 
   径迹的自动测量
3. A self-propelled vehicle, usually electric or diesel-powered, for pulling or pushing freight or passenger cars on railroad tracks. 
   机车一种自行推进的车辆，通常用电力或内燃机作动力，用于推或拉铁轨上的货车或客车
4. An area where railroad trains are made up and cars are switched, stored, and serviced on tracks and sidings. 
   修车场制造火车并在轨道和侧线上对车厢进行调试、贮放和维修的地方
5. The company engaged consultancy studies to improve the electrical system of the tram cars and tram tracks, and its motorman training. 
   电车公司已聘用顾问公司，研究如何改善电车车卡和电车路轨的电力系统，以及为电车司机提供的训练。

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