This difference in speed produces a difference in air pressure.
速度上的差异就产生了气压的差异。
The diaphragm is formed to make maximum a difference in air pressure of the front surface and the rear surface of the diaphragm, thereby forming any one of concave and convex shapes thereof.
隔膜形成为使得隔膜的前表面和后表面的气压差最大，这样，从而形成它的凹形形状和凸形形状中的任意一个。
Air accumulation in the condenser owing to insufficient output of air extractor can increase the terminal temperature difference and the air pressure component.
抽气器出力不足而引起的空气在凝汽器内积聚，使得凝汽器端差和空气分压力均增大，对凝汽器真空造成双重影响。
Simulates the changes of pressure difference, velocity field and the air flow in the door opening process, and discusses the influence to the contamination dispersion.
模拟了开门过程病房内外压差的变化，门附近的流场状况，以及进出门气流的变化状态，探讨了开门对污染物扩散的影响。
The cool corridor on the north and the warm space on the south create a difference in atmospheric pressure which provides air circulation and insulates the space.
北侧凉爽的走廊和南侧温暖的空间创造出不同的气压，使之间的空气自然流通。
In some cases the difference in atmospheric pressure causes the air to circulate naturally; in others a fan must be used to pump air into the mine.
有些矿井利用大气压力差引起空气自然流动，有些矿井则必须用扇风机把空气压人井内。
In some cases the difference in atmospheric pressure causes the air to circulate naturally; in others a fan must be used to pump air into the mine.
有些矿井利用大气压力差引起空气自然流动，有些矿井则必须用扇风机把空气压人井内。
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