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![Printed circuit board - Wikipedia, the free encyclopedia]()
en.wikipedia.orgA printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PC ...瀏覽：445
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日期：2025-06-21
A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PC ......
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