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  1. vapor barrier

    • IPA[ˈvāpər ˈberēər]
    • n.
      a thin layer of impermeable material, typically polyethylene sheeting, included in building construction to prevent moisture from damaging the fabric of the building.
    • noun: vapour barrier, plural noun: vapour barriers

    • 相關詞
    • n.
      a thin layer of impermeable material, typically polythene sheeting, included in building ...

    Oxford Dictionary