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FACTORS OF RESISTANCE AGAINST AIR CURRENT ESTABLISHED BY MEASUREMENT AND FACTOR ESTIMATED BY LITERATURE
[摘要] Specific resistance (R100) for underground mine rooms can he calculated by the constant (C). Constant (C) enables defining of the resistance for any relation of dimensions F3/U in similar mine rooms. Considerable anomalies were found by...
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[效力级别]  [学科分类] 地质学
[关键词] mine ventilation;factor of resistance;measurements;specific resistance (R100) [时效性] 
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