Comparing to raw limestone opencast collected, that exploited from cave is higher in purity, less in impurity and steadier in quality.
原料石灰石采用洞采方法，与露天采集的原料比，纯度高、杂质少、质量稳定。
The results show that the modified limestone shows higher surface area and pore volume, and its pore size distribution is better than that of raw limestone.
结果表明：调质改善了石灰石的孔结构特性，在直接硫化过程中比原始石灰石具有更高的钙转化率；
Transportation scheduling system of a cement raw material quarry is a complicated system involved with the yield, quality and transportation cost of raw limestone.
水泥原料矿山运输调度系统是一个涉及到产量、质量、成本的复杂系统。
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