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coal seam (1) |
equivalent materials (1) |
modelling (1) |
roof (1) |
stability (1) |
stope face (1) |
stress-strain state (1) |
coal seam (1) |
equivalent materials (1) |
modelling (1) |
roof (1) |
stability (1) |
stope face (1) |
stress-strain state (1) |