The test results show that the technology of vertical deep hole presplitting blast is a feasible method in Shi Rengou Iron Mine.
在石人沟铁矿的试验结果表明采用垂直深孔预裂爆破技术在该矿是一种可行方案。
Serial blasting crater test method was used in underground medium and deep hole mining of Dahongshan copper mine for determining drilling and blasting parameters, and good results were obtained.
大红山铜矿地下中深孔采矿中，采用系列爆破漏斗试验方法确定中深孔采矿凿岩爆破参数，取得了较好的效果。
This instrument is greatly welcomed by quality test department of deep-hole process industry because of its light weight, simple operation and convenient carrying.
仪器重量轻，操作简便，便于携带，是深孔加工行业质量检测部门不可多得的实用计量仪器。
This instrument is greatly welcomed by quality test department of deep-hole process industry because of its light weight, simple operation and convenient carrying.
仪器重量轻，操作简便，便于携带，是深孔加工行业质量检测部门不可多得的实用计量仪器。
应用推荐