fixed suction installation
常見例句
- The vacuum pump is not put on fixed installation, when the air in the suction pipe is removed, a siphon effect will be induced, and the vacuum pump can then be taken away.
真空泵不作固定安裝， 抽出吸泥管的空氣， 吸泥管形成虹吸后， 把真空泵搬走。 返回 fixed suction installation