Dustbags act as a filter and suction will be reduced if they are too full.集尘袋起到过滤作用, 如果所集的灰尘太多, 其吸附作用就会减小。

the suction of the milking machine挤奶机的抽吸过程

The pneumatic robot uses air to move and sticks to surfaces by suction.气动机器人利用空气来移动, 靠吸力附着于各种表面。

Michael was showing the nurse how to suction his saliva.迈克尔正给护士示范如何把他的唾液吸出来。

We found a cyst and I suctioned off the liquid within.我们发现了一个囊肿, 我把其中的液体吸了出来。