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 <title><![CDATA[有谁知道这是什么磁簧开关，怎样用的？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191.html]]></link>
 <description><![CDATA[Latest 50 replies of 有谁知道这是什么磁簧开关，怎样用的？]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <title><![CDATA[]]></title>
 <description><![CDATA[红蓝黑白

红（+极），蓝（-极），黑、白就是输出线(常开/常闭)]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#728321.html]]></link>
 <author><![CDATA[wayu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 21 Feb 2010 03:37:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢各位了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#728272.html]]></link>
 <author><![CDATA[吴高山]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 21 Feb 2010 02:45:03 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[我现在还没有用过了。学习了！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#719346.html]]></link>
 <author><![CDATA[gumeng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 30 Jan 2010 15:14:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[9楼所说正确，是晶体管型的磁性开关]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#719338.html]]></link>
 <author><![CDATA[liangtison]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 30 Jan 2010 15:04:29 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是晶体管型的磁性开关，我们单位用的多的很。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#719178.html]]></link>
 <author><![CDATA[许一民]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 30 Jan 2010 12:20:26 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[学习了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#718426.html]]></link>
 <author><![CDATA[hanqin]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 29 Jan 2010 08:24:16 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[其实你说的情况在进口设备上用的很多：一般四条线为：棕（+极），蓝（-极），黑、白就是PNP和NPN型号的输出线。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#718217.html]]></link>
 <author><![CDATA[xiedingkai]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 29 Jan 2010 03:50:48 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[正、负、输出信号、输出反相4根线。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#718210.html]]></link>
 <author><![CDATA[vancouva]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 29 Jan 2010 03:40:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了.不错喔!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#717578.html]]></link>
 <author><![CDATA[pretco123]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 28 Jan 2010 02:33:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一般上面都有接线图。常见二线。三线。四线。和五线。具体你查你下。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#717323.html]]></link>
 <author><![CDATA[763380318]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 27 Jan 2010 11:29:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上说的是。两根是感应开关的电源线，另外两根分别是感应开关的常开或常闭的输出线。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#717282.html]]></link>
 <author><![CDATA[shenlit]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 27 Jan 2010 10:49:46 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[正、负、输出信号、输出反相4根线。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#717255.html]]></link>
 <author><![CDATA[lqbzlqbz]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 27 Jan 2010 09:58:18 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[用磁铁碰一下，量出两根你所需要的用就是了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-55191#717168.html]]></link>
 <author><![CDATA[yyhexf]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 27 Jan 2010 07:51:00 +0000]]></pubdate>
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