combined force in horizontal direction
double-stage pump combined with diffuser and volute
endoscopic suction pump
left ventricular pump suction tube
pump suction supply pressure
suction force of the soil
suction pump
吸气唧筒
吸取泵
吸力泵
吸入泵
吸水泵
抽水机
真空泵
吸滤泵
吸气泵
吸引器
抽水泵
空吸泵
抽吸泵
抽气泵
吸泵
真空唧管
suction pump movable hood filter