Deformation Factors of Coal Seams in Long-yong Coal field[J]. COAL GEOLOGY & EXPLORATION, 1984, 12(6): 34-35.
Citation: Deformation Factors of Coal Seams in Long-yong Coal field[J]. COAL GEOLOGY & EXPLORATION, 1984, 12(6): 34-35.

Deformation Factors of Coal Seams in Long-yong Coal field

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