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Explosives and Explosive Ordnance Disposal
containing
上 组
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向上掘进炮孔组
在井下向上掘进小型立井作业中,进行爆破的一组炮孔,亦称反井爆破炮孔组
raise round
此外、对爆生气体的实地测量受上述所有因素变化无常的影响、所以测量结果是一组范围值
Furthermore, field measurements of detonation gases are subject to variability in all the factors mentioned before, and at best could provide a certain range of results
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