multilayer printed working board
·2,447,543篇论文数据，部分数据来源于NoteExpress
-
Making Multilayer printed board has a complex working procedure and long period, then the reason of causing Void PTH is very complex.
多层印制板的制作是一个生产工序复杂且周期很长的过程，那么造成金属化孔镀层空洞的原因也就很复杂。
youdao
更多双语例句