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Terms for subject Explosives and Explosive Ordnance Disposal containing 生效 的 | all forms | in specified order only
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产生聚能效应的原因带锥孔的圆柱形药柱爆炸后,当爆轰波前进到了锥体部分,其爆轰产物则沿着锥孔内表面垂直的方向飞出。由于飞岀速度相等、药形对称,爆轰产物要聚集在轴线上,汇集成一股速度和压力都很高的气流,称为聚能流。它具有极高的速度、密度、压力和能量密度。爆轰产物的能量集中在靶板的较小面积上,便能产生聚能效应reason for cumulative effect
他们成功地采用了超声波技术把鱼赶走、有效避免爆破对珍贵鱼类和其他水生物的不利影响、因而体现了工程建设与生态保护的和谐They have successfully adopted ultrasonic technology to drive away fish, which effectively avoided the impact of blasting on such valuable fish and other aquatic organisms, thus reflecting the harmony of engineering construction and ecological protection
在炸药爆炸过程中、合成能量转化为破岩和位移这些有益的实用能量。振动、冲击波和飞石这些不利的负面效应也是由合成能量产生的In the detonation of explosives, the resultant energy is converted into beneficial applications such as fragmentation and displacement. It is also responsible for adverse side effects such as vibration, airblast and flyrock
形切槽产生的力学效应在爆炸冲击波和爆生气体的准静压压力作用下, V 形切槽的存在将产生两个力学效应,即在切槽尖端产生应力集中和在切槽根部附近产生的压应力和低拉应力区,亦称裂纹生长抑制区。在这两个效应的作用下,裂纹必然从切槽尖端开始向前扩展,同时又抑制了新裂纹在其他方向上的生成mechanical effect of a notch V
然而、与这些巨大的效益结伴而行的是、炸药在使用时会产生声响和振动、这是无法摆脱的负面影响Along with these immense benefits, however, the use of explosives has an unwanted side effect in the form of sounds and vibrations
爆生气体可经过裂缝传播到水平自由面、并产生漏斗效应及随之而来的飞石。飞石表现的这种机理与冲击波的气体释放脉冲密切有关blast gases can propagate through cracks to the horizontal free surface and cause cratering and associated flyrock. This mechanism of flyrock manifestation is closely related to the gas release pulse GRP for airblast
生效的efficient