风机负压 meaning in English

fan suction

In next section , on basis of discussing negative - pressure - adjusting principle , detailedly summarizes rules of changing negative pressure by adjusting rotate speed of fan motor . then it gives a fuzzy algorithm for the controlling of negative pressure in sliding sealed suction cup
第六，讨论了风机负压控制原理，详细总结了风机负压控制规则，开发了滑动密封吸盘负压模糊控制算法。