V2EX closed circuit

Closed Circuit

释义 Definition

“闭路”的;“闭环”的;指一个不与外界直接连通的系统或回路。常见搭配 closed-circuit system(闭路/闭环系统)与 closed-circuit television / CCTV(闭路电视监控系统)。在电学中也可指“闭合电路”(与 open circuit 相对)。

发音 Pronunciation

/klozd skt/(美)
/klzd skt/(英)

例句 Examples

The store uses closed-circuit cameras for security.
商店使用闭路监控摄像头来保障安全。

In a closed-circuit system, the fluid is recirculated to reduce waste and limit exposure to the outside air.
在闭路系统中,流体会被循环回用,以减少浪费并降低与外界空气接触的机会。

词源 Etymology

closed 意为“关闭的、封闭的”,circuit 源自拉丁语 circuitus(“环行、回路”)。合在一起强调“形成一个封闭的回路/环路”,能量、信息或物质在系统内部循环而不(或很少)与外界交换;在监控语境里则指信号在内部网络传输的“闭路电视”。

相关词 Related Words

文学作品中的用例 Literary Works

该词组常以 closed-circuit television(闭路电视)的形式出现在犯罪、悬疑与反乌托邦题材中对“监控系统”的描写里,例如:

  • The Silence of the Lambs(Thomas Harris)
  • The Girl with the Dragon Tattoo(Stieg Larsson)
  • American Psycho(Bret Easton Ellis)
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