exhaust gas suction fan
抽气式吸风机
Open pump suction venting valve until gas free.
打开泵入口管线上的放空阀，至无气体。
Finish coat for engines, gas suction pipes, etc.
适用于发动机，输气管道等的面漆。
A device that moves fluid or gas by pressure or suction.
通过压力或吸力移动液体的装置。
Gas Suction by Drilling Roof at Shield Supported Working Face
掩护支架采煤面顶板钻孔抽放瓦斯
Gas suction or compression may allow to be mixed with a little liquid.
吸入或压送的气体中允许混有少量的液体。
Some suction is provided by the ejector scrubber and the tail gas fan.
喷射洗涤器和尾气排风机可提供部分吸力。
Research on improving gas drainage under suction in mining working face
提高回采工作面瓦斯抽放率的途径
Application of roadway gas drainage by first suction and then discharge in tucheng mine
先抽后启排放巷道瓦斯法在土城矿的应用
Testing research of improving mine gas drainage under suction by controlling blasting to cause crack
控制爆破致裂提高矿井瓦斯抽放率试验研究
Experimental Research on the Perfonaance of Liquid Gas Ejector at Low Back Pressure and Low Suction Pressure
低背压与低吸气压力下液气引射器性能的实验研究
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