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ufo6363
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樓主  發(fā)表于: 2012-12-08 13:17

圖中紅圈里面的是什么器件，是保護作用嗎，叫什么名字，謝謝。。。。。。。。。
聰穎gongkong
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1樓  發(fā)表于: 2012-12-08 20:56
圓的是電流互感器，方的應該是時(shí)間繼電器，回答完畢！
希望和各位討論學(xué)習！

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