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在我们的刊物中,也包括“矿山杂志”的篇幅在内,曾经出现过许多关于在坑道掘进中增大炮眼直径的合理性的主张。这些主张是以下列各矿个别掘进的事实作为根据,这些旷是:克里沃罗格旷区的
In our publications, including the length of Magazine Magazine, there have been many claims about the rationality of increasing the diameter of blastholes in tunneling. These propositions are based on the fact that the individual mines of the Kulvaro Open Range