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Terms for subject Explosives and Explosive Ordnance Disposal containing 板数 | all forms
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顶底板移近量指数采煤工作面每推进 1m, 每米采高的顶底板移近量以 mm表示index of roof-to floor convergence
顶板受压强度系数老顶受压时,采煤工作面支架平均载荷与平时支架平均载荷的比值coefficient of roof weighting
顶板强度指数根据岩石单向抗压强度、节理裂隙影响系数、分层厚度影响系数三项指标确定的长壁工作面顶板强度指数index of roof strength
顶板破碎指数无支护区宽度为 lm 时的顶板破碎度index of roof fracture