用深孔微差爆破技术成功地拆除了复杂环境下的四个大体积桥墩。
By use of deep-hole millisecond blasting technique, four large-volume bridge piers under complicated circumstances were successfully demolished.
高台段深孔孔内微差爆破技术在我国的首次应用，为中小型石灰石矿山高台段开采提供了切实可行的方法。
Millisecond delay technology of high step and deep hole is the first application in China, it offers a realistic method for high step exploitation of middle and small scale limestone mine.
本文简要介绍了深孔松动微差控制爆破技术。
Short delay controlled blasting technology for deep hole loose is presented in this paper.
通过技术经济、石料规格及周边环境等综合因素的比较，提出采用深孔微差爆破方案。
Based on the comparisons in technology economy, rock specification, and surroundings, this paper proposes the deep-hole controlled blasting method.
通过技术经济、石料规格及周边环境等综合因素的比较，提出采用深孔微差爆破方案。
Based on the comparisons in technology economy, rock specification, and surroundings, this paper proposes the deep-hole controlled blasting method.
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