单项选择题
A.弧的直径大小1.2mm B.弧的半径 C.无意义可忽略 D.弧到孔尺寸1.2mm
A.clearance B.coverage C.AR D.spacing
A.conductor width B.sliver C.stubs D.local spacing
A.Stubs B.Slives C.SpacingLength D.Shaved lines(arc)
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