... closed-circuit television 闭路电视 ; 有线电视 ; 闭路电视监控系统 ; 闭路式电视 closed-circuit screen 闭路筛 closed-circuit grinding 闭路研磨 ...
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The rooms are designed like upgraded 1950s bomb shelters, with air filters to screen out biological agents, dedicated phone lines, bathrooms and closed-circuit TV systems.
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