blocking brake

例句：

1. 1. The car's engine isexperiencing a blockage that needs to befixed immediately.
   汽车发动机出现了阻塞，需要立即修理。
2. 2. The engineer used a blocking brake tostop the machine before it could move.
   工程师使用阻塞制动器来停止机器，以免它移动。
3. 3. The construction site had to usea blocking brake to prevent workers from fallinginto the hole.
   施工现场不得不使用阻塞制动器来防止工人掉入坑中。