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。

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This method is based on the measurement of the rate of air flow through a given area of fabric by a given pressure difference across the fabric.

这个方法是基于对空气流速的测量：在一块既定面积的面料上，通过面料两边不同的压差来获得。

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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。

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The difference in air pressure made the rocket behave abnormally, and probably contributed to the crash.

ECONOMIST: Hypersonic aviation

This tracks the difference in air pressure between Iceland and the Azores and, during the winter months, determines the strength of the winds, temperatures and rainfall in the St Kilda archipelago.

ECONOMIST: Evolution and climate change

The difference between turbocharging and supercharging is simple: a turbocharger boosts engine air pressure by using exhaust gas to power a turbine that pushes more air into the combustion chamber.

FORBES: 2012 Audi A7 Test Drive and Review - High-Tech Meets High Style