By using drilling in pit, ore reserve classification is increased, risks of underground mining engineering are reduced and avoided.
主要阐述了矿区通过实施坑内鉆探,提高储量级别,降低和避免井下采矿工程风险,节约了成本,增加了效益。
In order to obtain an efficient extraction to mineral resources, a method with sufficient accuracy for estimating the grade and tonnage of ore reserve is required.