英语词汇“closed-circuit television”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 television
释义	closed-circuit television noun countable/uncountable UK or closed-circuit TV UK DEFINITIONS1 1 a system that allows someone to watch on a television screen what is happening in different parts of a building, town etc. The abbreviation CCTV is often used instead of the full word. Synonyms and related words Systems for broadcasting television and radio AM cable cable television closed-circuit television noun countable/uncountable US or closed-circuit TV US DEFINITIONS1 1 a system that allows someone to watch on a television screen what is happening in different parts of a building, town, etc. Synonyms and related words Systems for broadcasting television and radio cable cable television catch-up
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