PDF(919 KB)
Practice of Afterwards Back-filling Mining of Sublevel Caving Medium-Deep Hole
YU Changxian,HE Shunbin,YANG Shanghuan,HUANG Wei
Gold Science and Technology ›› 2014, Vol. 22 ›› Issue (4) : 85-88.
PDF(919 KB)
PDF(919 KB)
Practice of Afterwards Back-filling Mining of Sublevel Caving Medium-Deep Hole
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