double acting pump 双动泵 ; 复动泵 ; 双作用泵

Single-acting pump 单动泵 ; [机] 单作用泵

simplex double acting pump 单缸式复动泵

single acting pump 单作用泵

duplex double acting pump 双缸复动泵 ; 复式双动水泵 ; 双缸双作用泵

indirect acting pump 间接抽动泵

direct acting pump 直接作用泵 ; 直接联动泵 ; 直动泵

triple-acting pump [机] 三动泵

double acting piston pump 双作用活塞泵 ; 双效用活塞泵 ; 双作用式活塞泵 ; 双程活塞泵

direct acting steam pump 蒸汽直动活塞泵 ; 直动蒸汽泵