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![Relay - Wikipedia, the free encyclopedia](https://www.iarticlesnet.com/pub/img/site/s_08.jpeg)
Relay - Wikipedia, the free encyclopedia
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日期:2024-07-28
A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is ......看更多