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焊工秋月
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注冊時(shí)間: 2013-12-13
最后登錄: 2013-12-14
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樓主  發(fā)表于: 2013-12-13 00:49
菜鳥(niǎo)求助，哪位大神幫忙看看啊，老師都沒(méi)怎么講就讓做大作業(yè)，撓頭啦
工控7號
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注冊時(shí)間: 2013-10-23
最后登錄: 2014-07-10
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1樓  發(fā)表于: 2013-12-13 15:06
根據行程開(kāi)關(guān)控制接觸器正反轉，運行停止這么簡(jiǎn)單的都不會(huì )啊，估計上課時(shí)肯定沒(méi)好好聽(tīng)講

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