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 <title><![CDATA[各位帮帮忙]]></title>
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 <description><![CDATA[各位大哥:
要看公式:三相异步电动机转速&nbsp;&nbsp; n=60f/p*(1-s)
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57531#740645.html]]></link>
 <author><![CDATA[neilnie]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 13 Mar 2010 04:45:18 +0000]]></pubdate>
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 <description><![CDATA[2极&nbsp;&nbsp;2900
4极&nbsp;&nbsp;1450]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57531#740589.html]]></link>
 <author><![CDATA[yxc111]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 13 Mar 2010 02:50:51 +0000]]></pubdate>
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 <description><![CDATA[3000/极对数
2极的就是3000转左右。
4极的就是1500转左右。。。。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-57531#740532.html]]></link>
 <author><![CDATA[hanqin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 13 Mar 2010 01:33:30 +0000]]></pubdate>
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