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 <title><![CDATA[请教.电缸接3个点.为什么最多可以控制8步？]]></title>
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 <description><![CDATA[Latest 50 replies of 请教.电缸接3个点.为什么最多可以控制8步？]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[二进制，2的3次方]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1645791.html]]></link>
 <author><![CDATA[tingfenghu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 16 Feb 2015 12:49:14 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[三楼正解]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1645714.html]]></link>
 <author><![CDATA[杨作峰]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Feb 2015 11:21:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[6楼高]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1645699.html]]></link>
 <author><![CDATA[ntyuhaijun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Feb 2015 08:15:24 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第5楼gys19830912于2014-06-04 19:58发表的&nbsp;&nbsp;:
我晕，是8421OK？
[/quote]

这才是真正的高手，基础知识扎实，我是只知其一不知其二。我查了一下8421码

3个输出点可以对应0——7的位置，共8个位置。学习了。。。谢谢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1575494.html]]></link>
 <author><![CDATA[lijunquan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 05 Jun 2014 00:30:51 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我晕，是8421OK？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1575411.html]]></link>
 <author><![CDATA[打豆豆]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 04 Jun 2014 11:58:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[3楼正解 二进制很常用]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1575181.html]]></link>
 <author><![CDATA[yerong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 04 Jun 2014 01:03:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[排列组合呀。
3个点
1步000
2步001
3步011
4步111
5步100
6步110
7步101
8步010]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1575173.html]]></link>
 <author><![CDATA[lijunquan]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 04 Jun 2014 00:43:42 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用的是二进制码来控制的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1575163.html]]></link>
 <author><![CDATA[yamqq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 03 Jun 2014 23:17:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有时序关系，按时序来，则步数为2的“接点数”次方]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1457720#1575162.html]]></link>
 <author><![CDATA[jiaogeishui]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 03 Jun 2014 23:12:38 +0000]]></pubdate>
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