a closed circuit television system
闭路电视系统
以上为机器翻译结果,长、整句建议使用 人工翻译 。
For example, Britain, said a police spokesman in widely installed closed-circuit television system, crime fell to 1 million or so.
例如,英国警方发言人说,在广泛安装闭路电视系统以后,犯罪案件下降到1万起左右。
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