locomotive dispatching order

例句：

1. 1.The train operator dispatched the locomotives to the station ahead of schedule.
   列车运营商提前调度了机车前往车站。
2. 2. Thedispatcher made sure all locomotives were ready for departure.
   调度员确保所有机车都准备好出发。
3. 3. The locomotives were orderedto stop at a certain pointon the track.
   机车被命令在轨道上的某个点停下来。