1.
Application of Middle-Deep Hole Falling Afterwards Filling in no Waste and Harmful Mining
中深孔落矿嗣后充填法在无废害开采中的应用
2.
sublevel blast-hole method
深孔分段崩落采矿法
3.
To lower blasted boulder yield is one of the most important technical considerations in deep-hole blasting operations of mine.
降低深孔爆破落矿大块率是矿山凿岩中的一个重要课题。
4.
Application of Smooth Blasting with Medium Deep Holes in Mine Excavation
中深孔光面爆破在煤矿掘进中的应用
5.
Research on the Optimization of Medium-length Hole Blasting Technique in Small Mines
小型矿山中深孔爆破工艺的优化探索
6.
Distribution structure and parameter determination of medium-length holes in stage room mining method
阶段矿房采矿法中深孔布置结构及参数的确定
7.
Application of Groove Cutting by Medium-length Hole Blasting in Gently Inclined Cracked Orebody
中深孔排炮拉槽在缓倾斜破碎矿体中的应用
8.
Serial Blasting Crate Tests Confirm Medium-length Hole Blasting Parameter of Non-pillar Sublevel Caving Method
无底柱分段崩落法中深孔爆破参数试验
9.
Discussion on Excavation of Drift Using Medium-to-Long Hole Blasting In Xiangtan Manganese Mine
湘潭锰矿推广应用中深孔爆破掘进平巷的探讨
10.
Study on Underground Mining Middle-depth-hole Blasting Vibration in Chengchao Iron Mine;
程潮铁矿地下开采中深孔爆破震动研究
11.
A Research of Expert System about Medium-depth Holes Blasting Design of Underground Mine;
地下矿山中深孔爆破设计专家系统研究
12.
A Study on Blasting Parameter Optimization of Mis-deep Hole Mining Method in Kaiyang Phosphorite Mine;
开阳磷矿中深孔回采爆破参数优化试验研究
13.
Mining Steeply-inclined Thin Orebody with Medium-deep Hole High Sublevel Stoping Method
中深孔高分段空场法开采急倾斜薄矿体
14.
Underground Deep Hole Blasting Parameter Optimization in Chengchao Iron Mine
程潮铁矿井下中深孔爆破参数设计优化
15.
Study of Waste Blasting Parameter Optimization of Medium Depth Hole in Qianchang Copper-Iron Mine
前常铜铁矿中深孔凿岩爆破参数优化研究
16.
Test and Analysis on Mid-deep Hole Blasting in Zijin Collery
中深孔爆破技术在紫金矿现场试验效果分析
17.
Blasthole deflection is an severe adverse factor when mining is carried out using large diameter long hole blasting .
在大直径深孔采矿中 ,炮孔偏斜是非常不利的因素。
18.
A new method for the mining of gentle dip and mediun thickness orebody
缓倾斜中厚矿体的一种新的采矿方法——深孔放顶连续回采房柱法