It's just because of the lower pressure.

只是由于低气压的缘故。

youdao

But I also feel bad because of the lower pressure and the jet lag.

但是我还是因为低压和时差而感到难受。

youdao

If a diver ascends too quickly from a high-pressure underwater environment to a lower-pressure one, gases dissolved in blood and tissue expand and form bubbles.

如果潜水员从一个高压的水下环境迅速上浮到一个低压的水下环境，他们的血液和组织中溶解的气体就会膨胀并形成气泡。

youdao

All of these things combined help to improve heart activity, lower blood pressure and cholesterol levels, and reduce bone and muscle loss.

VOA: special.2010.06.08

Let's imagine maybe instead we just immediately dropped the pressure let the system expand against the lower pressure.

现在假设,我们很快地降低压力,让系统在低的外压力下膨胀。

麻省理工公开课 - 热力学与动力学课程节选

So the expansion against lower pressure draws less heat from the hot reservoir right.

所以压强较低时的膨胀,从高温热源吸收的热量更少。

麻省理工公开课 - 热力学与动力学课程节选

The daily cycle of higher pressure in the morning and lower pressure in the evening results from daytime heating of the atmosphere by the sun.

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"We would like to apologise to our customers in the Machynlleth area, Powys, who may have experienced problems with their water supply, or lower pressure, this morning, " said a spokeswoman.

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Even a relatively small amount of gas a can cause big problems because a gas bubble will expand massively as it moves from high pressure at the seafloor to lower pressure at the surface.

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