空气运动随空间和瞬时而变化是新鲜环境的要求。
Spatial and temporal variations in the air movement are desirable for fresh environments.
作者用简单的语言介绍了“风”，以及空气运动的原因和风力所能发挥的作用。
A simple discussion of wind, the causes of air movements, and the USES of wind power.
飞机能够飞行是因为机翼上面空气运动的速度与机翼下面空气运动的速度不同。
An airplane flies because the air moving over its wing is moving at a speed different from the speed of moving under its wing.
当冷锋位于背风坡时，在暖区沿锋面上升的暖空气运动范围增大，可以出现沿锋面相间隔的多个上升区。
There are multiple vertical upwarding zones in the warm side when the cold front passages in the leeward side.
强化空气运动的结果有利于组织燃料在缸内的浓度分布，从而为在二气门汽油机上实现稀薄燃烧打下基础；
The stronger air motions are helpful in organizing mixture strength distribution and then realizing lean mixture combustion in two-valve gasoline engines.
气雾两相流瞬态传质现象广泛存在于多相反应器、燃烧、空气污染物控制和大气运动等化工、环境和气溶胶科学领域。
Instantaneous mass transfer of gas-microdroplet two-phase flow is one of the most important procedures in the field of chemical engineering, colloid science and environment science.
气雾两相流瞬态传质现象广泛存在于多相反应器、燃烧、空气污染物控制和大气运动等化工、环境和气溶胶科学领域。
Instantaneous mass transfer of gas-microdroplet two-phase flow is one of the most important procedures in the field of chemical engineering, colloid science and environment science.
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