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 <title><![CDATA[三线式sensor]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846.html]]></link>
 <description><![CDATA[Latest 50 replies of 三线式sensor]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[常用的上面应该有PNP----NPN转换开关]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#959983.html]]></link>
 <author><![CDATA[黎明]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 14:24:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[PNP输出+24v&nbsp;&nbsp;NPN输出0v&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#959482.html]]></link>
 <author><![CDATA[wen_xianjun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 04:36:40 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[一个是高电平，一个是低电平 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#959478.html]]></link>
 <author><![CDATA[yye]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 04:34:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[就是信号输出ＰＮＰ是0V，ＮＰＮ是24Ｖ。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#959471.html]]></link>
 <author><![CDATA[20100809]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 19 Jan 2011 04:18:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[同意1楼.6楼]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#955714.html]]></link>
 <author><![CDATA[superandy]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 13 Jan 2011 02:12:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[&nbsp;&nbsp;PNP，NPN两种的区别
例如同样输入DC24v。PNP输出+24v&nbsp;&nbsp;NPN输出0v&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#955701.html]]></link>
 <author><![CDATA[饭特稀]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 13 Jan 2011 02:00:59 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[同意6楼的.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#954360.html]]></link>
 <author><![CDATA[自由的心]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 11 Jan 2011 06:49:53 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[一个是高电平有效，一个是低电平有效]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#954102.html]]></link>
 <author><![CDATA[无锡大阿福]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 11 Jan 2011 00:57:43 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PNP，NPN两种的区别
例如同样输入DC24v。PNP输出+24v&nbsp;&nbsp;NPN输出0v&nbsp;&nbsp;]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#953971.html]]></link>
 <author><![CDATA[detect]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Jan 2011 14:13:23 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[PNP感应器的信号线输出的是+24V,NPN感应器的信号线输出的是0V]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#953917.html]]></link>
 <author><![CDATA[borenwork]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Jan 2011 13:27:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[可以理解成三极管PNP 和npn的区别，看电压怎么加了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#953899.html]]></link>
 <author><![CDATA[2004100519]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Jan 2011 13:11:09 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#953860.html]]></link>
 <author><![CDATA[wave1417]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Jan 2011 12:52:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[应该是常闭和常开的区别吧。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#953840.html]]></link>
 <author><![CDATA[杨康]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Jan 2011 12:35:32 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[一个是输出+,一个是输出-]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-93846#953817.html]]></link>
 <author><![CDATA[ngch]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 10 Jan 2011 12:13:35 +0000]]></pubdate>
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