这是一篇关于Altium Designer 6.9 PCB设计软件的高级应用文档说明：包括规则设计，绕等长走线、以及层切换的方法！-This is an article on Altium Designer 6.9 PCB design software application documentation, senior: including rule design, a long walk around the other line, and layer switching method!

关于用Altium Designer Winter 09画元器件封装的介绍，对于初学画PCB的人非常重要，很实用-The introduction of Altium Designer Winter 09 painted components package for beginner painting PCB is very important, very practical

Altium Project complete schematics and PCB Automotive valve controller constant current pwm

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