1)total air,总风量，总空气量2)total air demand,总空气量3)total air requirement,空气需要总量4)total excess air ratio;total excess air ractor,总过量空气系数5)total air for combustion,燃烧总空气量6)total air flow,总风量
用法例句
Discussion on total air flow entering boilers burning coal in power plant;