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 <title><![CDATA[动作工程是怎么样的]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867.html]]></link>
 <description><![CDATA[Latest 50 replies of 动作工程是怎么样的]]></description>
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 <description><![CDATA[电焊工转电工，哈哈，说明书就有啊，看完书，在提问 [s:32]&nbsp;&nbsp;[s:32]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#611206.html]]></link>
 <author><![CDATA[zhangweiwei]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 28 Aug 2009 05:02:04 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[X0接通瞬间的一个扫描周期是接通的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#604701.html]]></link>
 <author><![CDATA[zwz579]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Aug 2009 08:35:47 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[上升沿脉冲信号呀。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#604697.html]]></link>
 <author><![CDATA[neilnie]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Aug 2009 08:33:27 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[上沿脉冲适用于输出继电器，对输入无效！不过用中间继电器也可也表达出同样的效果！ [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#604507.html]]></link>
 <author><![CDATA[yusanlong045]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Aug 2009 05:29:52 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[类似于上升沿微分麼？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#604497.html]]></link>
 <author><![CDATA[sunpeter]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Aug 2009 05:24:46 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[感谢两位！好人！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#597085.html]]></link>
 <author><![CDATA[小蜜蜂]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Aug 2009 02:47:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[X0信号的上升沿有效
在遇到X0接入信号的上升沿时，导通一个周期
等同于：
ld x0
pls m0

ld m0
。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#597084.html]]></link>
 <author><![CDATA[plcbb]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Aug 2009 02:46:33 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[在X0从0到1的瞬间满足条件，有什么问题吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-42867#597042.html]]></link>
 <author><![CDATA[qinshengyue]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Aug 2009 02:10:50 +0000]]></pubdate>
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