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 <title><![CDATA[请大牛简单直观的解释几个东西]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548.html]]></link>
 <description><![CDATA[Latest 50 replies of 请大牛简单直观的解释几个东西]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主，你太能忽悠了，都不知道你来这里玩吗。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1011609.html]]></link>
 <author><![CDATA[lqsmn]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 09 Apr 2011 11:04:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[lz要的是名词解释
？？？？？？？？？？？？？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1011571.html]]></link>
 <author><![CDATA[zhbng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 09 Apr 2011 10:13:13 +0000]]></pubdate>
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 <description><![CDATA[是不是学电的啊，应该懂的，不是要解释的就太多了..........]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1011000.html]]></link>
 <author><![CDATA[晴天]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 15:09:17 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[多看看书吧,上面都有图有说明的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010887.html]]></link>
 <author><![CDATA[dl2006]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 13:29:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[问题太高深啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010869.html]]></link>
 <author><![CDATA[王春茂]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 13:10:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[晕了&nbsp;&nbsp; 这些问题&nbsp;&nbsp; 在这里&nbsp;&nbsp;问 ，&nbsp;&nbsp;简直就5岁的孩子 问 A&nbsp;&nbsp;B&nbsp;&nbsp;C&nbsp;&nbsp; 是&nbsp;&nbsp;什么&nbsp;&nbsp;一样]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010841.html]]></link>
 <author><![CDATA[andyou82]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 12:54:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[罢、罢、罢！一起学习吧]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010802.html]]></link>
 <author><![CDATA[ysheng9099]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 12:12:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼主，别的不说，接触器你真不知道是什么东西吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010558.html]]></link>
 <author><![CDATA[汇荣铝业]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 08:12:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一起学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010524.html]]></link>
 <author><![CDATA[mjy1986]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 07:50:20 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[建议看一下有一本叫做，电力拖动 ，&nbsp;&nbsp;的书籍
接触器(Contactor)是指工业电中利用线圈流过电流产生磁场，使触头闭合，以达到控制负载的电器。接触器由电磁系统（铁心，静铁心，电磁线圈）触头系统（常开触头和常闭触头）和灭弧装置组成。其原理是当接触器的电磁线圈通电后，会产生很强的磁场，使静铁心产生电磁吸 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-101548#1010523.html]]></link>
 <author><![CDATA[yifan_1987]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 08 Apr 2011 07:47:47 +0000]]></pubdate>
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