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 <title><![CDATA[怎样编写电磁阀的开启和关闭梯形图？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323.html]]></link>
 <description><![CDATA[Latest 50 replies of 怎样编写电磁阀的开启和关闭梯形图？]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这个比较难阿]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1123459.html]]></link>
 <author><![CDATA[ukqbso]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 10 Sep 2011 16:01:18 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[慢慢学吗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1123392.html]]></link>
 <author><![CDATA[王风]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 10 Sep 2011 13:05:22 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[问的这个问题就像小孩问1+1等于几啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1123165.html]]></link>
 <author><![CDATA[wuliang211]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 10 Sep 2011 03:31:09 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[[s:28]&nbsp;&nbsp;[s:28] 这样问真不知怎样答你 [s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1123062.html]]></link>
 <author><![CDATA[shi2999]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 09 Sep 2011 23:39:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp;这个比较难]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1123022.html]]></link>
 <author><![CDATA[fdw1900]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 09 Sep 2011 17:21:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[问这问题之前您得问PLC是个什么东东。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1123016.html]]></link>
 <author><![CDATA[linf林峰]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 09 Sep 2011 16:16:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;用PLC的输出点控制阀用电磁铁的通电、断电，来实现对电磁阀的开启和关闭；梯形图根据控制要求来写。
&nbsp;&nbsp;&nbsp;&nbsp;若负载较大，PLC输出点可加继电器。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1122871.html]]></link>
 <author><![CDATA[qlin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 09 Sep 2011 12:30:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:28]&nbsp;&nbsp;[s:28]&nbsp;&nbsp;[s:28]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1122865.html]]></link>
 <author><![CDATA[bocc]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 09 Sep 2011 12:23:07 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[和其它的一样，y点输出控制电磁阀就可以了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-119323#1122864.html]]></link>
 <author><![CDATA[liuhanqi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 09 Sep 2011 12:21:49 +0000]]></pubdate>
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