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zjcw0419
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樓主  發(fā)表于: 2010-12-23 21:35
為什么電機的轉速有的資料是n=60f/p  ，有的卻是  n=120f/p。其中60與120代表的是什么？謝謝幫助�。。。�！
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1樓  發(fā)表于: 2010-12-25 15:18
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