two-stage compression pump

例句：

1. 1.The two-stage compression pump is an essential tool for cleaning oily water.
   两级压缩泵是清洁含油水的重要工具。
2. 2.The two-stage compression pump has been widely used in various industrial processes.
   两级压缩泵在各种工业过程中得到了广泛应用。
3. 3.The two-stage compression pump can effectively reduce the pressure of the working fluid.
   两级压缩泵能有效降低工作流体的压力。