单孔爆破试验
Single-hole blasting test
以上为机器翻译结果，长、整句建议使用 人工翻译 。
在实验室进行了单孔抛掷爆破试验，观测了台阶爆破漏斗形成过程，分析了抛掷速度及分布规律。
The single-hole casting blast experiment was conducted in lab. The formation process of blasting crater was observed and the casting velocity and its distribution rule was analyzed.
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