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Explosives and Explosive Ordnance Disposal
containing
下 面
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all forms
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in specified order only
Chinese
English
上半断面下部导坑掘进法
隧道开挖方法之一,即在全断面开挖过程中,遇到地质条件不稳定的岩层时,可采用上半断面和下部导坑同时爆破掘进的开挖方法施工
heading excavation method of lower part of upper half cross-section
两自由面水下台阶爆破
two-free-face underwater benching blasting
井下平面控制测量
建立井下平面控制系统的测量。包括基本控制导线测量和采区控制导线测量两类
underground horizontal control survey
井下采掘的临界面宽度与开采深度之比
width-to-depth ratio
典型的爆破气体释放剖面及相关下游采矿作业也在本文的研究之列
Typical emission profiles from blasting and related downstream mining operations are also examined in this work
地表
下面
的
subterranean
大气温度的增高、促使声速增加、这是说在这些条件下、大气折射可将冲击波挡回到地面
An increase in air temperature causes an increase in the speed of sound, which means that in these conditions airblast emissions can be focused back toward the ground by atmospheric refraction
水下界面边界条件
underwater interface boundary condition
水面下的
underwater
由于膨胀气体挤压这种物质、致使能量损失速度快、爆后产物的压力和温度迅速下降。这些损失作为膨胀波传到反应区之内、因而降低了压力和反应速率、且最终消除了对爆震波面传播的能量支持
As the expanding gases compress such material, energy is lost rapidly and pressure and temperature drop sharply in the reaction products. These losses are communicated to the interior of the reaction zone as a rarefaction wave, lowering the pressure and reaction rate, and ultimately removing support far the propagation of the detonation front
这种氧化溶液在两种情况下都会解体为微珠、在连续相内形成非连续相。这种乳化剂减少界面张力、并使这两个相
In either case the oxidizer solution is broken up into small droplets which form a discontinuous phase in a continuous phase. The emulsifying agent reduces the interfacial tension and keeps the two phases from separating
这里包括减轻水下爆破对海洋生物的负面影响所采取的亠些措施
Included here are a number of measures to mitigate the adverse environmental effects of underwater blasting on marine creatures
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