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  1. closed-circuit television

    • IPA[ˌkləʊzdˌsəːkɪt ˈtɛlɪvɪʒ(ə)n]

    英式

    • n.
      a television system in which video signals are transmitted from one or more cameras by cable to a set of monitors, used especially for security purposes.
    • noun: closed-circuit television

    • 更多解釋
    • IPA[ˌklōzdˌsərkət ˈteləˌviZHən]

    美式

    • n.
      a television system in which the video signals are transmitted from one or more cameras by ...

    Oxford American Dictionary