The rational decision of mining capacity is one of the key technologies in super-huge coal mine with durative, steady and high efficiency production.
特大型矿井持续稳定高效生产的关键技术之一是其开采规模的合理确定。
With mining capacity continuous increase and with mine entering into deep mining stage, the grade of crude ore and the grindability of ore decrease that raise the cost of grinding.
随着矿山规模的不断扩大和进入深部开采，矿石的原矿品位和相对可磨度逐渐降低，磨矿成本随之升高。
With mining capacity continuous increase and with mine entering into deep mining stage, the grade of crude ore and the grindability of ore decrease that raise the cost of grinding.
随着矿山规模的不断扩大和进入深部开采，矿石的原矿品位和相对可磨度逐渐降低，磨矿成本随之升高。
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