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老學(xué)生
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樓主  發(fā)表于: 2017-03-12 19:09
PLC電源板的濾波電容鼓了（120μF/400V）手里只有68μF/400V的，可以替用嗎？
xiakebiao
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1樓  發(fā)表于: 2017-03-13 13:22
并串三個(gè)二極管？說(shuō)說(shuō)依據什么？呵呵

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