供气: air feed; air supply扇: fan供气: air feed; air supply◇供气泵 air feed pump; 供气管道 gas supply line; air line排气扇;抽气扇: exhaust fan抽气扇: exhaust fan; extract fan换气扇: air exchange fan; scavenger fan; ventilator进气扇: supply fan空气扇: air propeller排气扇: air exhaust fan; air-vent; extractor; gas fan; vent fan; venting fan; ventlation fan单向排气扇: discharge fan电动排气扇: electric exhaust fan供气泵: air feed pump; air feeder pump供气道: air supply duct; air supply dump供气阀: air supply valve供气管: air hose; air supply pipe; air-supply duct; supply air pipe; supply air tube供气机: air feeder供气门: sucker door供气图: air supply diagram供气网: gas grid送气,供气: airfeed抽气扇抽气量: exhaust fan flow capacity洗手室排气扇: lavatory fan通风风扇;通风机;抽气扇: ventilation fan表示,供气量以: m3/kg舱顶供气口: roof flood outlet