| 释义 |
close circuit television
基本例句
闭路电视; 工业电视
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。
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。 |