The sublevel interval Charging is introduced which can significantly improve the quality of blasting thus reducing operation cost.

通过对气囊间隔器在爆破工作中的使用情况分析，提出采用分段间隔装药技术，提高爆破质量降低采矿成本。

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Under the condition of certain definite blasting parameters, it was found out that interval charging could reduce unit explosive consumption and also kept good broken effects.

在某些爆破参数确定的条件下，施工中摸索出空气间隔装药结构能降低炸药单耗，同时保证了破碎效果。

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According to a general and elaborate analysis of interval charging and its application in Malanzhuang Iron Mine, the feasibility and application value of interval charging is pointed out.

本文通过对间隔装药技术全面细致的分析以及在马兰庄铁矿的应用实践，指出间隔装药爆破技术的应用价值及其可行性。

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