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Eurocircuits - PCB multilayer fabrication - lay-up and bond

Step 7 in a series of educational video's by Eurocircuits showing the stacking of a multilayer PCB. ... The outer layers of our multilayer consist of sheets of glass cloth pre-impregnated with uncured epoxy resin (prepreg) and a thin copper foil....

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最近好多朋友給我留言,說朋友圈裡面這個「桃子和西瓜不可一起吃」的謠言又開始流行了。       也是啊,又到夏天了嘛。去年這個謠言也傳播過一回,當時還上了排行榜,今年原封不動地又來了!       對如此弱智的謠言,多數網友的態度如下: ...

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