internal-expanding brake

例句：

1. 1. Theinternal-expansion brake is designedto prevent the engine from overheatingduring high-speed operation.
   内部膨胀制动器设计用于防止发动机在高速运行时过热。
2. 2. During the maintenance, the technician foundthat the internal-expansion brakewas not functioning properly.
   维护期间，技术人员发现内部膨胀制动器功能不正常。
3. 3.The engineer had to replace the internal-expansion brake due to its failure.
   由于内部膨胀制动器的故障，工程师不得不更换它。