大氣壓力,簡稱氣壓,即係大氣層入面空氣嘅重力。標準大氣壓係1013.25hPa,呢個係一般喺海平面嘅氣壓。
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Vicente_2012-07-23_1755Z.png/640px-Vicente_2012-07-23_1755Z.png)
大氣壓力隨著高度嘅變化
大氣壓力會隨著高度降低。詳情請睇氣壓公式。
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