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  1. Oxford American Dictionary

    atmospheric pressure

    • IPA[ˌatməsˌfirik ˈpreSHər]
    • n.
      the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of 101,325 pascals (roughly 14.6959 pounds per square inch).

    • noun: atmospheric pressure

    • 更多解釋

    atmospheric pressure

    • n.
      the pressure exerted by the weight of the atmosphere, which at sea level has a mean value of ...

    Oxford Dictionary