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 <title><![CDATA[西门子S5问题]]></title>
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 <description><![CDATA[Latest 50 replies of 西门子S5问题]]></description>
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 <description><![CDATA[1楼说得对，pw一般使用piw和pqw，表示模拟量输入和输出。]]></description>
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 <author><![CDATA[1000wl]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 12 Jun 2009 13:01:36 +0000]]></pubdate>
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 <description><![CDATA[输入字，输出字，外围字]]></description>
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 <author><![CDATA[yasen]]></author>
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 <pubdate><![CDATA[Fri, 12 Jun 2009 10:17:47 +0000]]></pubdate>
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