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 <title><![CDATA[工业相机镜头上参数的含义]]></title>
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 <description><![CDATA[Latest 50 replies of 工业相机镜头上参数的含义]]></description>
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 <description><![CDATA[上边是光圈，下边是景深。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1931773.html]]></link>
 <author><![CDATA[1992sd]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 01 Nov 2017 04:30:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没玩过]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1931724.html]]></link>
 <author><![CDATA[陈吉柱0516]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 01 Nov 2017 00:33:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[ccd [s:39]&nbsp;&nbsp;[s:39]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1930817.html]]></link>
 <author><![CDATA[小试牛刀]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 27 Oct 2017 09:09:04 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第6楼小满和老鸟于2017-10-20 22:45发表的&nbsp;&nbsp;:
这是做什么用？
[/quote]
ccd]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1930253.html]]></link>
 <author><![CDATA[qq317438652]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 25 Oct 2017 07:34:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这是做什么用？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1929348.html]]></link>
 <author><![CDATA[小满和老鸟]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 20 Oct 2017 14:45:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:39]了解，感谢！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1929256.html]]></link>
 <author><![CDATA[vir智能]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 20 Oct 2017 09:05:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[光圈调进光量。焦距调物体的查看大小和清晰度。和拍照差不多。不够清晰就调焦距。太白太黑就调光圈。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1929252.html]]></link>
 <author><![CDATA[libin520]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 20 Oct 2017 08:40:39 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上说得对]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1928946.html]]></link>
 <author><![CDATA[蒲城风信子]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 19 Oct 2017 04:55:33 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这是调焦距]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1928936.html]]></link>
 <author><![CDATA[cjm1234]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 19 Oct 2017 04:35:48 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[上面那个是光圈 下面是光学变焦]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1634352#1928925.html]]></link>
 <author><![CDATA[不小心遇见你]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Thu, 19 Oct 2017 03:31:26 +0000]]></pubdate>
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