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Explosives and Explosive Ordnance Disposal
containing
装填的
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炸药的装填密度
炮孔内的炸药量与所占炮孔体积的比值
bulk density of explosives
after charging
药卷直径与炮孔装填部分的炮孔直径之比
coupling ratio
装填后的炸药密度
density of explosive
(after charging)
调查结果表明、飞石事故是由以下一个以上的因素促成的: 地质及岩石结构的非连续性、炮孔布置和装药量不适当、抵抗线不足、炸药能量高度集中、填塞不足
Investigations of flyrock accidents have revealed one or more of the following contributing factors:
I
discontinuity in the geology and rock structure,
II
improper blast hole layout and loading,
III
insufficient burden,
IV
very high explosive concentration, and
V
inadequate stemming
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