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单词 closed-circuit
释义

closed-circuit

adjective

closed-cir·​cuit ˈklōz(d)-ˈsər-kət How to pronounce closed-circuit (audio)
: used in, shown on, or being a television installation in which the signal is transmitted by wire to a limited number of receivers

Word History

First Known Use

1949, in the meaning defined above

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更新时间:2026/6/13 5:40:18