... parallel cut y 切割 parallel hole cut 平行孔钻进 parallel-chap cut 平行龟裂掏槽 ...
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parallel-hole cut 平行炮孔掏槽
To investigate the parameters of parallel cut blast without empty holes, an advanced numerical method is used to study the explosion effect of charge in hole perpendicular to a free surface.
为了考查无空孔直眼掏槽爆破参数，采用数值模拟方法研究单自由面垂直炮孔的爆炸作用问题。
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