单词	effective quality factor
释义	effective quality factor 有效品质因数
随便看	ventilation brick ventilation building ventilation by air passage ventilation by axial flow fan ventilation by ducts ventilation by even air pressure ventilation by exhaust fan ventilation by extraction ventilation by forced draft ventilation by force draft ventilation by high presseure ventilation by low pressure ventilation by means of boundary shafts ventilation by pipes ventilation cabinet ventilation calculation ventilation canopy hood ventilation cap ventilation capability ventilation capacity ventilation capacity of mining face ventilation car ventilation casement ventilation casing ventilation catheter