Under certain pressure of atomizing medium , the operating flow rate is affected by the difference of pressure between oil and pressed air as well as the structure of nozzles.

在一定的雾化介质压力下，运行油流量受油、气压差及喷嘴结构影响，在某种情况下会发生喷嘴运行油流量为零，雾化气倒流入油管的临界工况。

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So a round wall of air pressed towards the middle of the base.

于是一堵圆形的空气墙就压向船底的中部。

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The air outside pressed the side in.

外面的空气将桶壁压得凹进去了。

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The paper is smoothed and pressed to remove trapped air.

VOA: special.2009.07.06

The fruit is then gently machine pressed - filling the air with a wonderful perfume - before being fermented in batches.

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Marty then pressed a button on his jacket, and a fan started that air-dried his jacket.

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When Husband woke up, he pressed play and we cuddled as we watched my four minutes on air.

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