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 <title><![CDATA[75KW电机直流调速原理]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008.html]]></link>
 <description><![CDATA[Latest 50 replies of 75KW电机直流调速原理]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[多谢各位朋友了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008#1099067.html]]></link>
 <author><![CDATA[yumingming]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 Jul 2011 13:15:14 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[直流电机调速可分为电枢调速和励磁调速。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008#1098900.html]]></link>
 <author><![CDATA[xubaolin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 Jul 2011 07:51:09 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼主可找本电力拖动或可控硅方面的书来看看，好多年前的知识，已经忘记得差不多了，好象是啥啥电压环、电流环、移动相位、触发角等等.......]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008#1098823.html]]></link>
 <author><![CDATA[shaolinsi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 Jul 2011 06:01:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不知道，你是设备用，直流调速原理如下：&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;&nbsp;&nbsp;&nbsp;&nbsp;&n ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008#1098785.html]]></link>
 <author><![CDATA[865042639]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 Jul 2011 04:51:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[直流电机]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008#1098559.html]]></link>
 <author><![CDATA[yumingming]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 Jul 2011 00:18:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是三相异步电动机，还是直流电动机？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115008#1098515.html]]></link>
 <author><![CDATA[865042639]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 27 Jul 2011 15:25:32 +0000]]></pubdate>
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