twin cylinder reciprocating pump的意思|示意

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双缸往复泵

双缸往复泵 ... turret type piston pump 阀箱式活塞泵(美) twin cylinder reciprocating pump 双缸往复泵 twin lobe pump 双凸轮旋转活塞泵 ...

双缸来去泵 ... turret type piston pump 阀箱式活塞泵（美） twin cylinder reciprocating pump 双缸来去泵 twin lobe pump 双凸轮扭转活塞泵 ...