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mrgong:一般pcb说的过孔就是上下两层面短接 (2013-08-28 10:06) ^PdD-tY<
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whuywj:请问,这种短接过孔在高频的时候会对阻抗产生什么影响 (2013-11-05 17:00) WYE[H9x1?