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Air pressure (Atmospheric pressure) (Science Dictionary)

Air pressure (Atmospheric pressure): Air pressure is the weight of the atmosphere pressing down on the earth. It is measured by a barometer in units called millibars.

_ ស្វែងរកឬបកប្រែពាក្យផ្សេងទៀតនៅប្រអប់នេះ៖
ឯកសារការងារនិងរៀនគ្រប់ប្រភេទ៖​
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