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库尔斯克磁力异常区95％以上的铁矿石是用大规模露天法开采的,必须完成大量的穿孔爆破工程。列别金、斯托伊连和米哈伊洛夫采选公司各露天矿爆破的矿岩主要是普氏坚固性系数f=16～20的含铁石英岩、闪长斑岩和
Over 95% of the iron ore in the Kursk magnetic anomaly is mined by a large-scale open-air method and a large number of perforated blasting projects must be completed. The ore of blasting in the open pit mines of Lebedin, Stojilion and Mikhailov is mainly composed of ferri-quartzite, diorite porphyrite with f