A Study of Engineering Geology on the Stability of Coal Roof in Target Explorative Stage of Coal Field[J]. COAL GEOLOGY & EXPLORATION, 1989, 17(4): 42-47.
Citation:
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A Study of Engineering Geology on the Stability of Coal Roof in Target Explorative Stage of Coal Field[J]. COAL GEOLOGY & EXPLORATION, 1989, 17(4): 42-47.
|
A Study of Engineering Geology on the Stability of Coal Roof in Target Explorative Stage of Coal Field[J]. COAL GEOLOGY & EXPLORATION, 1989, 17(4): 42-47.
Citation:
|
A Study of Engineering Geology on the Stability of Coal Roof in Target Explorative Stage of Coal Field[J]. COAL GEOLOGY & EXPLORATION, 1989, 17(4): 42-47.
|