bale bogie

例句：

1. 1. The engineer designed the bale bogie to improve efficiency.
   工程师设计了滑块以提高效率。
2. 2.The train's bale bogie was damaged during maintenance.
   火车的滑块在维护时受损。
3. 3.The bale bogie is responsible for guiding the train through curves.
   滑块负责引导火车通过弯道。