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 <title><![CDATA[24V供电的仪表都是二线的吗？]]></title>
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 <description><![CDATA[Latest 50 replies of 24V供电的仪表都是二线的吗？]]></description>
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 <description><![CDATA[无源指电源与信号分开的，如工作电压为220V，信号为4－20MA；有源的为二线制，信号　与电压合用2根线。具体识别：端子符号电源与信号标识是否分开的？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-66793#803926.html]]></link>
 <author><![CDATA[taipi-k]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jun 2010 14:05:56 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第2楼phrame于2010-06-09 13:23发表的&nbsp;&nbsp;:
型号：7ME4100-2FC22-2DA1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
测量范围：0～1300KG/M3，密度&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
测量精度：±0.1g/m3实际值&nbsp;&nbsp;&nb ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-66793#803744.html]]></link>
 <author><![CDATA[bogegongkong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jun 2010 11:13:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[型号：7ME4100-2FC22-2DA1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
测量范围：0～1300KG/M3，密度&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
测量精度：±0.1g/m3实际值&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
管 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-66793#803512.html]]></link>
 <author><![CDATA[phrame]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jun 2010 05:23:18 +0000]]></pubdate>
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 <description><![CDATA[你这个表是4线制的 2线制的输出不需要电源]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-66793#803499.html]]></link>
 <author><![CDATA[liujinyu0403]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Jun 2010 05:06:06 +0000]]></pubdate>
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