pumping effect meaning in Chinese

泵动效应
抽运效应

The deep veins of the lower legs are situated in the muscles of the calf , and when compressed by muscular contraction , the non - return valves cause a pumping effect the muscle pump aiding the return of blood
小腿深处的静脉位于肌肉处，当肌肉收缩时，会对单向导管产生类似泵的作用肌肉泵作用，从而使血液流回心脏。
The deep veins of the lower legs are situated in the muscles of the calf , and when compressed by muscular contraction , the non - return valves cause a pumping effect ( the muscle pump ) aiding the return of blood
小腿的深层静脉藏于小腿肚的肌肉内，当因肌肉收缩而受压，防止倒流的瓣膜会产生抽送的作用（肌肉泵），促进血液流回心脏。