... 3.0.4爆破 blasting 3.0.5预裂爆破 presplitting blasting 3.0.6施工预裂爆破 construction-presplitting blasting ...
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deephole presplitting blasting 深孔预裂爆破
shallow presplitting blasting 浅孔预裂爆破
level presplitting blasting 水平预裂爆破
presplitting blasting technology 预裂爆破技术
presplitting blasting parameters 预裂爆破参数
presplitting blasting excavation 预裂爆破开挖
short delay presplitting blasting 微差预裂爆破
The technique of deep-hole presplitting blasting in coal bed is widely used for gas predrainage recently; but its blasting theory is not clear up to now.
煤层深孔预裂爆破近年来在瓦斯抽放中运用日益增多，但目前对其爆破理论研究较少。
The notch blasting mechanism is expounded by the fracture mechanics principle, the cutting tool parameters for notch presplitting blasting is put forward.
利用断裂力学原理阐明了切槽爆破机理，提出了切槽预裂爆破的刀具参数，依据现场初步试验成果指出了下一步应改进的切槽刀具参数。
Under complex condition in a factory building, two large-scale reinforced concrete columns of the factory building were partially cut by the presplitting blasting.
在厂房内复杂环境下，用预裂爆破对两个大型钢筋混凝土厂房立柱进行部分切割。
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