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 <description><![CDATA[电热管是阻性负载，功率=电压*电流。220伏用3只,&nbsp;&nbsp;星形接法。每相电流47.7A。
&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;380伏用3只， ..]]></description>
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 <pubdate><![CDATA[Wed, 20 Oct 2010 12:47:42 +0000]]></pubdate>
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 <description><![CDATA[学学看看 [s:26]&nbsp;&nbsp;[s:26] 差不多]]></description>
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 <author><![CDATA[cctv1986108]]></author>
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 <pubdate><![CDATA[Wed, 20 Oct 2010 11:31:07 +0000]]></pubdate>
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 <description><![CDATA[两种种电压电流差不多一样.]]></description>
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 <description><![CDATA[[s:39] 这个问题太弱了，没人回答吗？]]></description>
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 <author><![CDATA[yefengchen]]></author>
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 <pubdate><![CDATA[Wed, 20 Oct 2010 08:10:28 +0000]]></pubdate>
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