The present development of study on jointed rock mass blasting by scholars all over the world are described and some common mathematical models are analyzed in this paper.
描述了目前国内外学者对节理岩体爆破的研究进展，分析了常用的一些数学模型，阐述了人们对爆破块度的测定及预报情况以及计算机模型模拟及其应用。
Therefore, making a thorough study on the fragment size in rock mass blasting is of momentous practical significance.
因此，对岩体爆破块度的研究具有重要的实际意义。
Therefore, making a thorough study on the blasting fragmentation distribution is of momentous theoretical and practical significance.
因此，对爆破块度分布进行深入的研究具有重大的理论和实际意义。
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