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 <title><![CDATA[变频器问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419863.html]]></link>
 <description><![CDATA[Latest 50 replies of 变频器问题]]></description>
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 <description><![CDATA[应该是共振现象，PID参数是否整定好？或者是原来没有问题，有人改动过参数？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419863#1411328.html]]></link>
 <author><![CDATA[chen_0106]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 Feb 2013 03:16:15 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[有共振现象没]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419863#1411298.html]]></link>
 <author><![CDATA[rgbfii]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 18 Feb 2013 01:21:17 +0000]]></pubdate>
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 <description><![CDATA[是不是负载不稳造成的，比如流量波动，泵后压力不稳，在其他频率段会出现吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1419863#1411256.html]]></link>
 <author><![CDATA[slik]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 17 Feb 2013 16:15:21 +0000]]></pubdate>
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