high pressure fixed displacement vane pump

例句：

1. 1. The high-pressure fixed-displacement vane pump is an essential component in the oil refining process.
   高压固定排量叶轮泵是石油精炼过程中的一个关键组件。
2. 2. The vane pump is used to remove impurities from the water before it is discharged into the environment.
   叶轮泵用于在排放到环境中之前从水中去除杂质。
3. 3. The vane pump is a reliable and efficient solution for handling large volumes of liquid at highpressure.
   叶轮泵是一种可靠且高效的解决方案，用于处理大量液体在高压力下的处理。