closed-circuit
UK/'kləuzd,sə:kit/US
释义
adj.
(of TV or a system) transmitted within a self-contained, closed loop rather than broadcast openly.
闭路的
词根拆分
词根派生closedroot
+
circuitroot
=closed-circuit
closed（闭合的）+ circuit = 闭合回路。最熟悉的是 closed-circuit television（CCTV 闭路电视），信号留在私有的闭合系统内，而非公开广播。
常用搭配
- 1.closed-circuit television闭路电视
- 2.closed-circuit camera闭路摄像头
例句
- 1.
Closed-circuit cameras monitor the entire parking lot.
闭路摄像头监控着整个停车场。