PDF(4211 KB)
Research on Safety Roof Span in Continuous Mining of Gold Vein Group Under Synergistic Concept
Xingxin NIE, Quan GAN, Jian GAO, Shanshan FENG
Gold Science and Technology ›› 2020, Vol. 28 ›› Issue (3) : 337-344.
PDF(4211 KB)
PDF(4211 KB)
Research on Safety Roof Span in Continuous Mining of Gold Vein Group Under Synergistic Concept
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