piston push rod check nut

例句：

1. 1. The technician needsto check the piston push rod for any signs of wear or damage.
   技术人员需要检查活塞推杆是否有磨损或损坏的迹象。
2. 2. During maintenance, the mechanic will perform a piston push rod check to ensure proper functioning.
   在维护期间，机械师将执行一个活塞推杆检查，以确保正常工作。
3. 3. The engineer must inspect the piston push rod and check the nuts to ensure they are securely fastened.
   工程师必须检查活塞推杆并检查螺母，以确保它们被牢固地固定。