column charge blasting
... length of column charge 柱装药长度 column charge blasting 柱状药包爆破 column charge length 柱状药包长度 ...
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球状和柱状药包爆破 Spherical column charge blasting
再把特定条件下的经验单耗视为合适的爆破作用强度，从而导出柱状药包爆破的计算公式。
The empirical unit consumption of explosive under special conditions is considered as a proper blasting strength, from which the calculation formula for the blasting of cylindrical charge is derived.
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