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 <title><![CDATA[请教一个步进电机的问题]]></title>
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 <description><![CDATA[Latest 50 replies of 请教一个步进电机的问题]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[转速只和频率有关]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-8936#197427.html]]></link>
 <author><![CDATA[a113118a]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Mar 2008 14:28:38 +0000]]></pubdate>
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 <description><![CDATA[[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-8936#197407.html]]></link>
 <author><![CDATA[52722914]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Mar 2008 14:03:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[转速只和频率有关！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-8936#189152.html]]></link>
 <author><![CDATA[yubing]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 11 Mar 2008 11:12:42 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[脉冲输出指令有好几个参数,不知道你的K2是指第几个?转速和频率有关,行走的距离是跟脉冲数有关]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-8936#188888.html]]></link>
 <author><![CDATA[tanqi8209]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Mar 2008 15:50:16 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[给一个脉冲走一个步距角，转速和频率有关，看看原理就会明白了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-8936#188768.html]]></link>
 <author><![CDATA[wrh359]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Mar 2008 12:51:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不太懂，是不是你叙述的太不专业？步进电机的转速由输入的脉冲频率决定，频率越高，转速越高。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-8936#167605.html]]></link>
 <author><![CDATA[fy3721]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 08 Jan 2008 07:52:26 +0000]]></pubdate>
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