closed circuit tv

基本解释

He says more police personnel will also be recruited, and closed-circuit TV cameras installed in crowded places such as shopping malls.
他说，当局也会招募更多的警察，并且在购物商场等人多的地方装置闭路电视摄像机。
The hotel has elegant and cozy standard rooms and luxury suites, all equipped with closed-circuit satellite TV and central air conditioning.
宾馆拥有雅致舒适的标准客房和豪华套房，客房内设有卫星闭路电视系统和中央空调。
The company also engages in research and development of multi-media closed-circuit-television teaching system, multimedia classroom equipment and cable TV system for education industry.
在教育行业专门从事多媒体闭路电视教学系统、多媒体教室设备的研制开发以及专业经销有线电视系统设备的高科技股份制公司。

They were spotted on a closed-circuit TV camera together at the King's Cross station about 20 minutes before the bombings.
NPR: Police: Bombing Suspects Are British Natives
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.
FORBES: Magazine Article
"We risk getting caught in the cyclical trap so common in our industry, " he tells them, his words amplified via closed-circuit TV to employees around the world.
FORBES: The Impatient Mr. Ghosn