做PCB板图的规范，有华为的经验总结，EMC设计方法以及一些NB人对布局布线的经验总结，都是很实用的东东，不过要想完全掌握那些N人的经验，可是需要很好的功底哦！

By the end of this document module you should be able to: • Describe Nb interface • Describe Mc and NPI interface • Describe Iu-Cs and A interface • Describe MGW-PSTN/PLMN interface • Describe MGW as a cross-c

超级记事本，非常NB的源代码。值得学习。可以做很多事情，启动速度很快。-Super Notepad, very NB source code. Worth learning. Can do many things, start fast.