shotholes

基本解释

First shotholes are drilled into the ore-bearing rock.
這意味著這個工作要分步驟進行。
Based on the theory of fracture mechanics,the mechanism of crack-forming among shotholes in the directional split of rock by controlled blasting is expunded.
文章依據斷裂力學理論,論述巖石定曏斷裂控制爆破砲孔間貫通裂紋形成的原理;
Shotholes are prepared by powerful drills. The drills may be mounted on mobile platforms, where an unusually thick seam is being worked in two benches; the bulldozer clearing the upper one gives some idea of the height.
砲眼預先用功率強大的鑿巖機鑽好。鑿巖機安裝在可移動工作平台上--較厚的鑛層都分爲兩個台堦開採，推土機清理上層台堦形成一定的高度。
unbalanced shotholes
不平衡破的砲眼
multiple shotholes
多井爆炸