positive displacement stuffer

例句：

1. 1.The positive displacement stuffer is used topump liquids at high pressure.
   正位移泵用于在高压下泵送液体。
2. 2. Thepositive displacement stuffer is an efficient wayto transfer fluids in industrial processes.
   正位移泵是一种高效的工业过程中传输流体的方法。
3. 3.The positive displacement stuffer was designed toimprove the efficiency of the process.
   正位移泵的设计旨在提高过程的效率。