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Explosives and Explosive Ordnance Disposal
containing
中面
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三面采空矿柱的应力集中区
peninsula abutment
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
大面积矿柱的应力集中区
continent abutment
爆炸面中心
center of origin
爆破人员在采矿及建筑拆除爆破过程中所面临的一个最大难题、是准确算岀爆破安全区的范围
One of the greatest challenges, which a blaster faces in mining and contruction blasting, is to accurately determine the bounds of the blast safety area
爆破喷泄的气体渗人与炮孔轴线垂直的裂缝面、将岩石破碎后抛向空中
G-venting from the blast penetrates the fracture planes perpendicular to the hole axis and breaks the rocks up and propels them up to the air
立井断面的几何中心
通过立井中心,在水平面上互相垂直的两条方向线,其中一条应垂直于提升绞车的主轴
cross line of shaft center
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