Compared with the conventional presplitting methods, the shaped charge is obviously more effective in presplitting blasting and especially useful in controlling the presplitting slots.
聚能预裂爆与普通预裂爆相比,爆明显提高,能有地控制预裂缝。
Compared with the conventional presplitting methods, the shaped charge is obviously more effective in presplitting blasting and especially useful in controlling the presplitting slots.
聚能预裂爆与普通预裂爆相比,爆明显提高,能有地控制预裂缝。
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