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。
Elevation amplification effect of blasting vibration is an important study content of vibration propagation law on rock slope.
岩质边坡爆破振动的高程放大效应是边坡上振动速度传播规律的重要研究内容之一。
This study resolves automation of medium length blasting design based on the substantive research work.
本论文在大量研究工作基础上，实现中深孔设计的计算机自动化。
Current situation of study and application of hole-by-hole blasting on mechanism, delay time and effect is analyzed; developing further problems to be solved are given in this paper.
主要从逐孔爆破技术机理、微差时间和爆破效果等方面分析了该技术的研究和应用现状，同时分析了该技术需要进一步解决的问题。
The research into explosion pressure on the wall of a borehole occupied a very important place in the study work about the mechanism of rock fragmentation by blasting.
炮孔孔壁压力问题在爆破机理研究中占有极其重要的地位和作用。
The development of study on cut height calculating in demolishing building with controlled blasting is reviewed.
总结了爆破缺口高度的研究现状。
Abstract: Objective To study the effect of sand blasting and coating binder on the bonding strength of different tray materials and silicone rubber.
摘要目的研究喷砂及涂布粘结剂对不同托盘材料与硅橡胶结合强度的影响。
Abstract: Objective To study the effect of sand blasting and coating binder on the bonding strength of different tray materials and silicone rubber.
摘要目的研究喷砂及涂布粘结剂对不同托盘材料与硅橡胶结合强度的影响。
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