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QUOTE: 以下是引用moujianguo在2007-1-30 20:15:00的发言: under-cut (侧蚀) ETCH FACTOR ... 狂龙 发表于 2010-8-2 23:27
under-cut (侧蚀) ETCH FACTOR(蚀刻因子)F(蚀刻因子)=铜厚/侧蚀侧蚀越好,蚀刻因子越好 ... moujianguo 发表于 2007-1-30 20:15
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