road switching locomotive

例句：

1. 1. The road switching locomotive was used to switch the railway tracks.
   道路换轨机车被用来更换铁路轨道。
2. 2. The engineer had to use the road switching locomotive to clear the snow from the tracks.
   工程师不得不使用道路换轨机车来清理铁轨上的雪。
3. 3. The road switching locomotive helped the train make its way through the snowy terrain.
   道路换轨机车帮助火车穿越积雪覆盖的地形。