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 <title><![CDATA[功耗7.5VA&nbsp;&nbsp; 功率多大]]></title>
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 <description><![CDATA[[quote]引用第4楼ajpa88于2013-06-24 15:38发表的&nbsp;&nbsp;:
&nbsp;&nbsp; 7.5VA是视在功率，有功功率=视在功率xcosΦ。一般cosΦ取0.9, 
你需要学习的东西还很多呀！
[/quote]
正解]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1430888#1457789.html]]></link>
 <author><![CDATA[xuliuqing200]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Jun 2013 07:21:50 +0000]]></pubdate>
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 <description><![CDATA[功耗乘以功率因数就行了]]></description>
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 <author><![CDATA[sug]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 24 Jun 2013 12:15:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp; 7.5VA是视在功率，有功功率=视在功率xcosΦ。一般cosΦ取0.9, 
你需要学习的东西还很多呀！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1430888#1457428.html]]></link>
 <author><![CDATA[ajpa88]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 24 Jun 2013 07:38:05 +0000]]></pubdate>
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 <link><![CDATA[http://www.ymmfa.com/read-gktid-1430888#1457355.html]]></link>
 <author><![CDATA[zgf889]]></author>
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 <pubdate><![CDATA[Mon, 24 Jun 2013 04:24:14 +0000]]></pubdate>
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 <description><![CDATA[差不多6KW,功耗乘以功率因数就行了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1430888#1457172.html]]></link>
 <author><![CDATA[yu655792]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 23 Jun 2013 12:59:17 +0000]]></pubdate>
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