气压计在过去4小时变化4毫巴。

Barometric change 4millibars within last 4 hours.

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气压计变化是每小时1.5毫巴。

Barometric change 1.5millibars per hour.

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例如，火星表面的平均大气压强仅为大约7.5毫巴(比地球上的1%还小)，地球上的大气压强超过1000毫巴。

For instance, atmospheric pressure on Mars is only a fraction of what it is here on Earth - averaging 7.5 millibars on Mars to just over 1000 here on Earth.

youdao

例如，火星表面的平均大气压强仅为大约7.5毫巴(比地球上的1%还小)，地球上的大气压强超过1000毫巴。

For instance, atmospheric pressure on Mars is only a fraction of what it is here on Earth - averaging 7.5 millibars on Mars to just over 1000 here on Earth.

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