共 50 条
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- [3] Preliminary coal seams degassing as a potential guarantor of methane-safety underground mining Ugol', 2002, (10): : 61 - 64
- [5] SAFETY IN THE MECHANICAL MINING OF COAL TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1954, 199 (05): : 524 - 526
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