closed-circuit television (CCTV)

• 闭路电视

closed-circuit television (CCTV)的用法和样例：

例句

1. There is a closed circuit television and hi-fi system in the room.
   房内有闭路电视和高保真音响。
2. Similar CCTV cameras are being planned for other open highways and major public transport interchanges.
   此外，当局正计划在其他露天公路及主要公共交通交汇处，安装同类型的闭路电视摄影机。