deep-hole pre-splitting blasting 深孔预裂爆破
easy pre-splitting blasting 简易预裂爆破
deephole pre splitting blasting 深孔预裂爆破
pre-splitting blasting technique 预裂爆破技术
ms-delay pre-splitting blasting 微差预裂爆破
deep-hole pre- splitting blasting 深孔预裂爆破
pre-splitting blasting with water-copuling 水耦合预裂爆破
ms-delay close-drilling pre-splitting blasting 微差密孔预裂爆破
pre-splitting loose blasting 预裂松动爆破
Pre-splitting blasting is a wildly used method in the excavation of the outline.
预裂爆破是一种广泛应用于爆破开挖轮廓处的方法。
The rock property difference of bedded composite rock often does not lead to ideal Pre-splitting blasting effect.
层状复合岩体中岩层性质的差异常常导致预裂爆破效果不理想。
Finally, the economy, the social effect were used to appraise the pre-splitting blasting with wide pitch of holes.
最后，对使用宽孔距的预裂爆破所产生的经济、社会效应进行了评价。
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