A reciprocating piston, the inhalation and from a liquid, known as a working cycle; this pump known as the single-action pump.
活塞往复一次，各吸入和排出一次液体，称为一个工作循环；这种泵称为单动泵。
The imbalance of the radial force of the single action vane pump is a main problem which affects the enhancement of the working pressure.
单作用叶片泵径向不平衡力是影响其工作压力提高的主要问题。
The hydraulic profile control and water shutoff pump is a hydraulic driven reciprocating pump with double cylinders and single action.
液压调剖堵水泵是一种液压驱动的双缸单作用往复泵。
The hydraulic profile control and water shutoff pump is a hydraulic driven reciprocating pump with double cylinders and single action.
液压调剖堵水泵是一种液压驱动的双缸单作用往复泵。
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