【化】 风箱; 皮老虎

air-pocket

air cure

１国际空里相当于１８５２米，与１国际海里长度相等\ninternational air mile【航】 计量

air standard Otto cycle【动力】

supply of additional air for additional air(secondary air)

air gauge

air impermeability【机】;air-tightness【机】

surface air cooler