radio telecontrol of locomotive for shunting at hump

例句：

1. 1. The new radio telecontrol system allows for more precise and efficient operation of the locomotives.
   新的无线电遥控系统使机车的操作更加精确和高效。
2. 2. The train's radio telecontrol was disabled during maintenance, causing delays in the schedule.
   在维护期间，火车的无线电遥控系统被禁用，导致时间表延误。
3. 3. The engineer used the radio telecontrol to manually override the emergency brakes on the train.
   工程师使用无线电遥控手动解除了火车上的紧急制动器。