In view of the two layout of charges constant nature, this paper researched blasting cone and throwing accumulation rule of linear and sub-concentrated charge by experiment.
针对这两种布药结构可比性问题，论文就条形药包与分集药包爆破漏斗特点和抛掷堆积规律进行了试验研究。
Abrasive hardness measurement method, more commonly used are hand-cone method, mechanical cone method, Rockwell hardness tester hardness measurement method and blasting assay.
测定磨具硬度的方法，较常用的有手锥法、机械锥法、洛氏硬度计测定法和喷砂硬度计测定法。
Abrasive hardness measurement method, more commonly used are hand-cone method, mechanical cone method, Rockwell hardness tester hardness measurement method and blasting assay.
测定磨具硬度的方法，较常用的有手锥法、机械锥法、洛氏硬度计测定法和喷砂硬度计测定法。
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