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一气压等于多少帕
更新时间: 2020-09-22 00:00:00  

标准大气压是在标准大气条件下海平面的气压,1644年由物理学家托里拆利提出,其值为101、325kPa,是压强的单位,记作atm。一个标准大气压是这样规定的:把温度为0摄氏度,纬度45度海平面上的气压称为1个大气压,水银气压表上的数值为760毫米水银柱高(相当于1013、25百帕)。

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