| 单词 | closed-circuit television camera |
| 释义 | closed-circuit television camera(ˈkləʊzdˌsɜːkɪt ˌtɛlɪˈvɪʒən ˈkæmərə) noun telecommunications a television camera transmitting signals to receivers by cables or telephone links forming a closed circuit, as used in security systems, etc Security upgrades have focused on installing closed-circuit television cameras inthe most vulnerable offices. |
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