Principles of Air Valves 气阀原理 ; 气阀道理
Dimension of air outlet 出风口尺寸 ; 出风口标准 ; 科瑞莱环保空调出风口尺寸
influx of air 进气 ; 空气的流入
conditioning of air 空气调节
liquefaction of air [物] 空气液化
Center of air pressure 风压中心 ; 风压中间
way of air leakage 漏风通道
inflow of air 空气的流入 ; 进气
Exclusion of air creates a vacuum in the bottle.
瓶子里的空气排除后就产生真空。
A cold draught of air blew in from the open window.
一股寒气从敞开的窗户吹了进来。
Ensure there is a free flow of air around the machine.
要确保机器周围空气畅通。
The American Lung Association said Pittsburgh was last in the nation in one of three measures of air quality.
VOA: special.2009.07.13
It's got that kind of air of profundity about it that philosophy's thought to have or aspires to have.
带有某种哲学思想或追求,所具有的深刻性。
So, instead of having the periodic variation of water, or the periodic variation of air density here we're talking about an electric field.
不像水或者空气密度的,周期变化,我们这里,讨论的是电场。
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