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本文介绍了加拿大卡罗尔铁矿所属斯摩尔伍德露天矿火钻与牙轮钻的经济此较方法,以及在寒冷气候条件下用浆状炸药进行爆破的操作经验等。
This article describes the economics of this method of drilling and roller cone drilling at the Smolewood open pit mine in Carroll, Canada, as well as the operational experience of blasting with slurry explosives in cold climates.