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 <title><![CDATA[求助，传感器选型!]]></title>
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 <description><![CDATA[Latest 50 replies of 求助，传感器选型!]]></description>
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 <description><![CDATA[光电型比较好用一此]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1432125#1463597.html]]></link>
 <author><![CDATA[zaoyongcai]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 12 Jul 2013 12:18:11 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第2楼mlsyg于2013-07-10 12:23发表的&nbsp;&nbsp;:
黑色金属主要指铁、锰、铬及其合金，如钢、生铁、铁合金、铸铁等。黑色金属以外的金属称为有色金属。
[/quote]
那不锈钢就是黑色金属了？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1432125#1462808.html]]></link>
 <author><![CDATA[597835876]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Jul 2013 08:08:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[用欧姆龙的微型光电 不更好 EE-SX672 K35M]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1432125#1462786.html]]></link>
 <author><![CDATA[小学没毕业]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Jul 2013 06:47:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[电容式接近开关]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1432125#1462745.html]]></link>
 <author><![CDATA[caoxinhua735]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Jul 2013 04:43:51 +0000]]></pubdate>
</item>
<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[黑色金属主要指铁、锰、铬及其合金，如钢、生铁、铁合金、铸铁等。黑色金属以外的金属称为有色金属。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1432125#1462740.html]]></link>
 <author><![CDATA[mlsyg]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Jul 2013 04:23:37 +0000]]></pubdate>
</item>
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 <title><![CDATA[]]></title>
 <description><![CDATA[那个不锈钢 能选检测磁性有无的么]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1432125#1462671.html]]></link>
 <author><![CDATA[597835876]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 10 Jul 2013 01:32:54 +0000]]></pubdate>
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