closed-circuit television

• 闭路电视

closed-circuit television的英文翻译是什么意思，词典释义与在线翻译：

英英释义

Noun:

1. a television system that is not used for broadcasting but is connected by cables to designated monitors (as in a factory or theater)

closed-circuit television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. In education,closed-circuit television makes it easy for a whole class to see everything a teacher demonstrates.
   在教育方面，闭路电视能使全班同学易于看清教师所演示的一切。