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 <title><![CDATA[什么是电机的恒功率和恒扭矩,他们的联系是 ..]]></title>
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 <description><![CDATA[Latest 50 replies of 什么是电机的恒功率和恒扭矩,他们的联系是 ..]]></description>
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 <description><![CDATA[袁原来是这么一会事情啊!!! [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-21431#310333.html]]></link>
 <author><![CDATA[时间的味道]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Sep 2008 14:00:29 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[张知识了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-21431#310326.html]]></link>
 <author><![CDATA[china_1ysz]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Sep 2008 13:55:26 +0000]]></pubdate>
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 <description><![CDATA[转矩=9550*（功率/转速），知道什么回事了吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-21431#310102.html]]></link>
 <author><![CDATA[luo76]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Sep 2008 10:50:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习长见识了。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-21431#310101.html]]></link>
 <author><![CDATA[雪花飘飘]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Sep 2008 10:50:25 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你的概念是变频器上的,我国是380v 50 hz的电压,当输出频率在50hz&nbsp;&nbsp;以下,叫恒转矩调速,高于50 hz&nbsp;&nbsp;叫恒功率调速]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-21431#310071.html]]></link>
 <author><![CDATA[smallislet]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 15 Sep 2008 10:27:03 +0000]]></pubdate>
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