windmill brake

例句：

1. 1. The windmill brake was the only thing that could slow down the train's speed.
   风车制动器是唯一能减缓火车速度的东西。
2. 2. The engineer used the windmill brake to stop the engine before it could overheat.
   工程师使用风车制动器来在发动机过热之前停止它。
3. 3. The old windmill brake had been replaced with a newer model, which is more efficient and safer.
   旧的风车制动器已被更高效和更安全的新型号所取代。