According to the theory of shock waves, the smash district and its forming time, the blasting cavity radius and its expanding characteristics are all discussed in this paper.
运用爆炸冲击波理论,讨论了炮孔柱状装药爆破时的岩石粉碎区及其形成时间、爆腔半径及其扩胀规律。
Meanwhile, insider reports, to make this a program of advantage, forming irreplaceable in its alliance hunan TV specially platform, qinghai TV, transfer a lot of prime-time broadcast the show.
同时,知情人报称,为了使这一节目形成不可替代的优势,湖南卫视特地在其联盟台,青海卫视,划拨了大量黄金时段播放这一节目。
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