英语词汇“closed circuit”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	closed circuit
释义	closed circuit noun : a circuit whose path carries completely around a course or through a cycle without break in continuity: a. : an electric circuit made up of a continuous endless conductor or series of conductors with electrically conducting connections b. : a television installation in which picture and sound are not broadcast but transmitted over a closed channel to a limited number of interconnected receivers < closed-circuit television >
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