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一、炮眼的排列距离直線爆破完全按水平打直線限,炮眼的排列距離很近,其間隔僅以每個炮眼的藥包爆破時能够破壞另一炮眼或周边炮眼間隔層為限(見第一圖)。
First, the arrangement of the blasthole straight-line blast straight from the level of straight line limit, the arrangement of blasthole close, the interval only to each blasthole when the blasting of the cartridge can destroy the other blasthole or peripheral blasthole interval is limited (see the first Figure).