在钻爆法施工凿岩工程中，潜孔凿岩钻具的使用量呈上升趋势，特别是高风压潜孔凿岩钻具的产品类型不断增加。
During rock projects with drilling-Masting method, there is an escalating trend of the use of downhole rock drilling tools.
石方开挖施工要点：采用潜孔钻机配以凿岩机钻眼，松动控制爆破和边坡成型光面爆破。
Elements of stonework excavation: Use down-hole drill assisted with hammer drill drilling. Control blasting loosely and side slope molding smoothing wall blasting.
石方开挖施工要点：采用潜孔钻机配以凿岩机钻眼，松动控制爆破和边坡成型光面爆破。
Elements of stonework excavation: Use down-hole drill assisted with hammer drill drilling. Control blasting loosely and side slope molding smoothing wall blasting.
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