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炮孔布置图
在一个工作面或台阶上布置,为了爆破需给出炮孔位置的平面图。最小抵抗线和间距应以米表示
pàokǒng bùzhìtú
expl.
blast pattern
;
blast hole pattern
;
drilling hole pattern
炮孔布置图
为爆破而在台阶或隧道作业面上拟定的炮孔设计并标明井巷掘进工作面炮孔彼此关系的平面、剖面图。包含自由面在内的爆破炮孔布置几何图,注明了各孔的长度、直径、方向和钻杆的数量
pàokǒng bùzhìtú
expl.
drilling pattern
;
drilling plan
炮孔布置图
参见 drilling pattern ;drilling plan;blast hole pattern
pàokǒng bùzhìtú
expl.
drilling hole pattern
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