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 <title><![CDATA[关于反馈]]></title>
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 <description><![CDATA[Latest 50 replies of 关于反馈]]></description>
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 <description><![CDATA[一楼说的很透彻]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25608#366955.html]]></link>
 <author><![CDATA[lw-0595]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 26 Nov 2008 08:41:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢指点！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25608#366420.html]]></link>
 <author><![CDATA[wzhr036]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 26 Nov 2008 00:10:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[伺服电机自带有编码器&nbsp;&nbsp;如果你让他走100个毫米 他如果在中间受干扰少走了它会通过反馈来进行补偿还是会走100个毫米&nbsp;&nbsp;但步进不会 
还有伺服的电机特性比步进好多了&nbsp;&nbsp;
步进的几个缺点&nbsp;&nbsp;1 低频的时候转矩会很低 ，启动的时间要比较麻烦点
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-25608#365677.html]]></link>
 <author><![CDATA[nbwrk]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 25 Nov 2008 08:20:09 +0000]]></pubdate>
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