Studying the craft and design of the PCB in high frequence signal system.

研究了高频电子印刷板的设计原理，并掌握了制作工艺。

youdao

Studying the craft and design of the PCB in high frequence signal system.

研究了高频电子印刷板的设计原理，并掌握了制作工艺。

youdao