名词解释
在机务段内，由三边线路及相应的道岔尽头线组成的供机车转换方向的设备。
待班线 waiting track on duty
名词解释待班线 waiting track on duty
整备线 servicing siding
名词解释整备线 servicing siding
机车出入段线 track for going out and coming into the depot
名词解释机车出入段线 track for going out and coming into the depot
