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yangzuofei
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樓主  發(fā)表于: 2008-08-12 23:17
單相電機可以用三相熱繼電器，接一相就可以
1234560asd
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1樓  發(fā)表于: 2008-08-17 19:50
請問(wèn)那你知道,2KW的3相用多少熱繼電器,和2KW的單相多少熱繼電器(簡(jiǎn)單基礎)

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