radial drilling pattern

同义词释义

1)radial drilling pattern,辐射形炮眼排列方式2)ring pattern,扇形炮眼排列方式3)square pattern,方形炮眼排列法4)lay out of round,成组炮眼的排列5)perforation pattern,炮眼排列分布6)random perforation orientation,炮眼不规则排列