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。

youdao

At a cruising altitude of 30,000 feet, pressure outside of the plane is about two and a half times lower than what passengers experience on the inside.

在三万英尺的巡航高度，飞机外部的气压大约比乘客感受的内部气压低2.5倍。

youdao

At a cruising altitude of 30, 000 feet, pressure outside of the plane is about two and a half times lower than what passengers experience on the inside.

在三万英尺的巡航高度，飞机外部的气压大约比乘客感受的内部气压低2.5倍。

youdao

The air pressure in a plane during flight is lower than at sea level.

VOA: special.2009.07.14

Atmospheric pressure was too great for the plane.

VOA: special.2010.07.07

"We know there's pressure to make that plane or you're traveling with family or bringing special foods you don't want to get squished, " said Fitzpatrick.

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Early ideas suggested blunting the nose of the plane to prevent the pressure waves joining up to form one intense shock wave, or lengthening the plane without increasing its weight to dampen the noise.

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Then, seemingly tired, she squints at the afternoon sun, hesitating before cracking her jaws in the yawning attitude of a passenger in a plane clearing her ears of accumulated air pressure.

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