closed-circuit monitor 闭路监视器
closed-circuit television monitor 闭路电视监察器
closed circuit video monitor 闭路录像监视器
closed circuit monitor
闭路监控器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
She gets paid to do janitorial chores or to monitor closed-circuit TV for her neighborhood.
CNN: Family alive but struggling after quake
Israelis also monitor the crossing via closed-circuit television.
CNN: Gaza crossing to reopen after protest
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