hoist piston rod head block

例句：

1. 1.The engineer used a special tool to hoist the piston rod head block off the engine.
   工程师使用特殊工具将活塞杆头部挡块从发动机上卸下。
2. 2.The technician carefully removed the hoist piston rod head block to inspect the engine.
   技术员小心翼翼地移除了吊杆活塞杆头部挡块来检查发动机。
3. 3. During maintenance, it's important to ensure that all parts are properly secured and not causing any interference with the operation of the machine.
   在维护过程中，确保所有部件都正确固定，不妨碍机器的运行是非常重要的。