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 <title><![CDATA[卷径怎么求!]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895.html]]></link>
 <description><![CDATA[Latest 50 replies of 卷径怎么求!]]></description>
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 <description><![CDATA[如果说只是理论计算的话，理想状态的话，那就有卷后的外圆面积=纸筒外径园面积+纸的总截面积。卷径=D，纸筒外径=d，纸长度=L，纸厚度=u，所有单位相同。则有（D／2）&amp;sup2;xπ=（d／2）&amp;sup2;xπ+L*xu,也就是D&amp;sup2;=d&amp;sup2;+4Lxu/π,就是D=√（d&amp;sup2;+4Lxu/π）]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1195086.html]]></link>
 <author><![CDATA[niningtt]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 07 Jan 2012 03:35:00 +0000]]></pubdate>
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 <description><![CDATA[是的！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1195050.html]]></link>
 <author><![CDATA[uspli1]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 07 Jan 2012 02:17:47 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[是不是这样&nbsp;&nbsp;就可以了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1195046.html]]></link>
 <author><![CDATA[心情不错]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 07 Jan 2012 01:55:05 +0000]]></pubdate>
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 <description><![CDATA[如果是卷经收卷方案你可以看一下MD330使用说明，里面包裹了全部收卷调整方案]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1195010.html]]></link>
 <author><![CDATA[xpvista]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 06 Jan 2012 23:49:38 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21] 摸包学习中]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1194882.html]]></link>
 <author><![CDATA[农夫]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 06 Jan 2012 13:34:37 +0000]]></pubdate>
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 <description><![CDATA[马达转一圈加两个厚度值不就是直径]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1194871.html]]></link>
 <author><![CDATA[rockyhuo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 06 Jan 2012 13:17:32 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[周长除3.14]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-134895#1194805.html]]></link>
 <author><![CDATA[ying-feng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 06 Jan 2012 11:32:45 +0000]]></pubdate>
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