◆电源开发网◆--专注于电源设计与仿真,电源工程师成长的摇篮。
电源开发网专注于开关电源设计,开关电源仿真,EMC设计,EMC仿真。包括有:pspice仿真,saber仿真,Matlab仿真,Ansoft仿真,CST仿真等

HayudarIntertional,weestablishedin2005,whohasbeenprovidinginternationallogisticsservicesformorethan15years,nowwehavebecomeamulti-channels,diversifiedlogisticsplatformofferssolutionsincludingaircargo,seatransportation,railway,customclearance,warehousingandtruckingcontainsexportandimportdirectionsbetweenChinaandmostofactivetradingcountriesintheworld.