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1. 闭合电路：Making Use of Electricity 电的使用 | 8.1 Closed Circuit闭合电路 | 8.2 Electrical Conductors and Insulators电的导体和绝缘体

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2. 闭路：closed arch 闭合拱 | closed circuit 闭路 | closed circuit crushing 闭路破碎

3. 闭合电路,通路：clonograph 阵挛描记器 | closed-circuit 闭合电路,通路 | closed-circuit anesthesis apparatus 闭合式麻醉机

4. closed circuit在线翻译

4. 闭(合回)路,闭合电路：clog warning sensor 堵塞报警传感器 | closed circuit 闭(合回)路,闭合电路 | closed hole 盲孔,闷孔

1. a complete electrical circuit around which current flows or a signal circulates

    Synonym: loop