protel dxp 2004 sp1 sp2 sp3 sp4注册机，试过能用，操作简单-protel dxp 2004 sp1 sp2 sp3 sp4 Zhuceji tried can use, simple operation

2004DXP的一些原理图库和PCB库，对新手比较有用，里面基本上的元件都有。-Some of 2004DXP s schematic library and PCB library, more useful for beginners, which basically components are.