大直径深孔采矿法
Large diameter longhole mining method
Large diameter longhole mining
高阶段大直径深孔采矿法
high sublevel
large diameter and long hole stoping method
浅孔留矿采矿法
shallow shrinkage stoping
short hole shrinkage stoping method
short hole shrinkage mining
Short-hole Shrinkage Method
中深孔采矿法
moderate-longhole mining method
爆力运矿采矿法
Explosive ore-handling mining
大孔钻孔
big-diameter hole drilling
精密深孔钻孔工具
precision deep hole drilling tool