No flow of water occurs through the pipe unless there is a difference in pressure.

若没有不同的压力给管道的话，那么就不可能有流动的水通过管道。

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In the case of a plane, it's the difference in pressure on the top and bottom of its wings that keeps the craft afloat.

以飞机为例，它双翼上方与下方的压力各不相同，正是这不同的压力使得飞行器保持悬浮。

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There's virtually no lag time, and there's no drastic difference in pressure if two or more faucets are open simultaneously.

不会有延时，当两个水龙头同时打开的时候也不会感到水压明显的不同。

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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 in the game was the level of pressure they put on us in the second half and certainly the shots they made, " Butler coach Brad Stevens said.

NPR: Blue And Marquette Show Butler The Door, 74-72