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  1. Oxford Dictionary

    dead air

    • n.
      a period during which the signal of a television or radio broadcast is unintentionally interrupted, so that no material is transmitted.

    • noun: dead air, plural noun: dead airs

    • 更多解釋

    dead air

    • n.
      an unintended interruption of the video or audio signal during a television or radio broadcast.

    Oxford American Dictionary