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Зараз показуються 11-17 з 3
roof stability (1) |
stope (1) |
stope face (1) |
stress-strain state (3) |
support (1) |
support section (1) |
theory of elasticity and vibrations (1) |
roof stability (1) |
stope (1) |
stope face (1) |
stress-strain state (3) |
support (1) |
support section (1) |
theory of elasticity and vibrations (1) |