- 闭路电视机
- closed: adj. 1.关闭着的，封闭着的；密闭着的；保密的。 2 ...
- circuit: n. 1.(某一范围的)周边一圈；巡回，周游；巡回路线[ ...
- television: n. 电视。 black-and-white telev ...
- unit: n. 1.个体，一个，一人。 2.(计值、组织、机构)单 ...
- cctv closed circuit television: 闭路电视，工业电视
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closed-circuit television unit中文什么意思
发音:
- 闭路电视机
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