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 <title><![CDATA[一个问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435.html]]></link>
 <description><![CDATA[Latest 50 replies of 一个问题]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[直流电不会产生磁场]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#369735.html]]></link>
 <author><![CDATA[sxjun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 16:53:52 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[一样有的 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#369717.html]]></link>
 <author><![CDATA[lwj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 16:19:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不切割磁感线　哪来电啊　]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#368645.html]]></link>
 <author><![CDATA[tjjshd]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 03:06:12 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[回去看下有关电磁感应的书,]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#368531.html]]></link>
 <author><![CDATA[52hling]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Nov 2008 00:50:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[六楼说“只要导线在磁场切割磁力线都会产生感应电流”，好像不准确，应该是“只要导线在磁场切割磁力线都会产生感应电动势”。产生感应电动势不一定就有电流]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#368175.html]]></link>
 <author><![CDATA[wsandlqj]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 27 Nov 2008 12:36:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[直流电是没感应电的
因为感应点要有变化的磁场或者要倒替切割磁力线.
其实我还没弄明白LZ说的感应电的什么概念的.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#368167.html]]></link>
 <author><![CDATA[lxhrdm]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 27 Nov 2008 12:29:50 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[现在真的不清楚了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#366990.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 26 Nov 2008 09:34:43 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[到底是那个对啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#366042.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 12:57:25 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我现在还是不知道那一位说的对啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#365801.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 10:27:10 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢！学习了！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#365752.html]]></link>
 <author><![CDATA[小坏孩]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 09:39:27 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[洗耳恭听!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#365620.html]]></link>
 <author><![CDATA[jinliangguo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 07:46:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没接触过直流.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#365619.html]]></link>
 <author><![CDATA[jinliangguo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 07:45:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[交变的电流才能产生交变的磁场,交变的磁场才能感应出交变的电流,所以直流电不会产生感应电,所以长途供电采用直流供电,减少电损,]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#365526.html]]></link>
 <author><![CDATA[csc51]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 05:48:29 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[没有变化的磁力线]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#363793.html]]></link>
 <author><![CDATA[谢荣金]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 23 Nov 2008 12:32:29 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[还有没有人说说啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#363620.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 23 Nov 2008 09:47:03 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[有电就有磁,静止的次磁场不会再产生电的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#363245.html]]></link>
 <author><![CDATA[jinliangguo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 23 Nov 2008 02:27:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[直流没感应电，何来有直流电流钳表。中学物理题
&nbsp;&nbsp;&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#362911.html]]></link>
 <author><![CDATA[火狐]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 22 Nov 2008 13:27:56 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[自己顶顶啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#362892.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 22 Nov 2008 13:12:13 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[一起来研究研究啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#362757.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 22 Nov 2008 11:11:42 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[自己顶顶]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25435#362697.html]]></link>
 <author><![CDATA[随便聊1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 22 Nov 2008 10:28:41 +0000]]></pubdate>
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