The electron tube is one of the earliest electrical signal amplifiers. The cathode electron emission part, control grid, acceleration grid, and anode (screen) leads enclosed in a glass container (usua
Reducing painting pollution, reducing painting costs, and improving painting quality have always been the themes of the development of painting technology. This article briefly introduces the developm
102, 102, 102)][font=Helvetica, "][size=14px] [p=28, null, left][color=rgb(102, 102, 102)][font=Helvetica, "][size=14px] More and more customers will add color when designing LCD screens, making them
It used to work fine before, but I don't know since when, all the multi-layer pads in the PCB library became FULL STACK, resulting in a pad on the top layer and a hole on the bottom layer.
I checked o
[url=home.php?mod=space&uid=753718][font=微软雅黑][size=4]@北[/size][/font][/url][font=微软雅黑][size=4] [/size] [/font][url=https://en.eeworld.com/bbs/thread-1075985-1-1.html][font=微软雅黑][size=4]【 STM32WB55 Ev