hoist pump check valve body

例句：

1. 1. The engineer inspected the hoist pump to ensure it was functioningproperly.
   工程师检查了提升泵，确保其正常工作。
2. 2. The valve body is designed to preventleaks and ensure proper flow.
   阀门体设计用来防止泄漏并确保正确流动。
3. 3. Duringmaintenance, the technician carefully removed the checkvalve body to replace it with a newone.
   在维护过程中，技术人员小心地拆卸了检查阀体，并用一个新的来替换。