换气: take a breath; aeration chan ...系数: coefficient; ratio; modulus; ...换气系统: air-interchange system臭氧换气系统: sirrocozone system抽气系数(加气系数): exhaust coefficient掺气系数: aeration coefficient产气系数: gas production factor充气系数: aeration factor; coefficient of fresh charge; gassing factor; volumetric efficiency空气系数: air factor漏气系数: air leakage factor排气系数: exhaust coefficient喷气系数: jet coefficient曝气系数: aeration coefficient; aeration factor扫气系数: coefficient of scavenging通气系数: ventilation coefficient透气系数: air transmission coefficient; permeability coefficient; permeabilitycoefficient余气系数: excess air coefficient过量空气系数: coefficient of excess air; coefficient of excessive air; excess air coefficient; excess air factor; excess air ratio; factor of excess air过剩空气系数: air excess factor; airfuel ratio; excess air coefficient; excess air factor; excess air number; excess air ratio压缩排气系数: discharge coefficient of compressor输气系数(容积效率): coefficient of capacity透气系数, 空气透过率: air transmission coefficient换气: 1.(屏气后再次呼吸) take a breath (in swimming); aeration2.(通风) change of air◇换气风扇 scavenger fan; 换气口 scavenge port; 换气装置 air interchanger气速指数,换气速度系数: air velocity index肺换气: gas exchange in the lung; pulmonary exchange; pulmonary ventilation