处理物转移 铜箔处理层氧化物转移到基材上的现象表面铜箔被蚀刻掉后残留在基材表面的黑色褐色或红色痕迹
Treatment transfer The phenomenon of oxide transfer of the copper foil treatment layer to the substrate The blackish brown or red traces remaining on the surface of the substrate after the copper foil is etched away
以上为机器翻译结果，长、整句建议使用 人工翻译 。