ejector pump

例句：

1. 1.The ejector pump is used to remove water from the tank.
   喷射泵用于从水箱中移除水。
2. 2. The ejector pump is an essential part of the oil refinery process.
   喷射泵是炼油厂过程中不可或缺的一部分。
3. 3. The ejector pump was designed to improve efficiency in the oil refining process.
   喷射泵的设计目的是为了提高石油精炼过程的效率。