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  1. Oxford American Dictionary

    vapor density

    • IPA[ˈvāpər ˈdensədē]
    • n.
      the density of a particular gas or vapor relative to that of hydrogen at the same pressure and temperature.

    • noun: vapour density, plural noun: vapour densities

    • 相關詞

    vapour density

    • n.
      the density of a particular gas or vapour relative to that of hydrogen at the same pressure and ...

    Oxford Dictionary