PDF(1334 KB)
Safety Thickness of Interval Layers for the Transition from Open Pit to Underground Mining
ZHANG Qinli;CHEN Qiusong;HU Wei;ZHOU Denghui
Science & Technology Review ›› 2013, Vol. 31 ›› Issue (11) : 33-37.
PDF(1334 KB)
PDF(1334 KB)
Safety Thickness of Interval Layers for the Transition from Open Pit to Underground Mining
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