发布于 2009-09-06 12:00:36
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http://support.automation.siemens.com/CN/llisapi.dll/27864874?func=ll&objId=27864874&objAction=csView&nodeid0=37217116&lang=zh&siteid=cseus&aktprim=0&extranet=standard&viewreg=CN&load=content&csQuery0=频率&subtype=133000
树欲静而风不止,干风何事?