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。
Using quartz sand, limestone, dolomite and other natural mineral as the main raw material, with some soda, borax etc chemical raw materials melting into glass.
采用石英砂、石灰石、白云石等天然矿石为主要原料，配合一些纯碱、硼砂等化工原料熔成玻璃。
Using quartz sand, limestone, dolomite and other natural mineral as the main raw material, cooperate with some soda, borax etc chemical raw materials melting into glass.
采用石英砂、石灰石、白云石等天然矿石为主要原料，配合一些纯碱、硼砂等化工原料熔成玻璃。
Cement is bulky and cheap. It makes sense to produce it in vast plants close both to limestone quarries, which provide a vital raw material, and to customers.
水泥体积庞大而又价格低廉，在既靠近提供重要原料的石灰石矿场又靠近客户的大型工厂生产水泥是明智的选择。
The alkali contained in cement comes mainly from clinker, and the major factors influencing the clinker alkali content are the alkali contents in limestone and clayey raw material.
水泥中碱含量主要来自熟料，影响熟料减含量的主要因素是石灰石和粘土质原料中的碱含量。
CA Cement Clinker is a manufactured commodity which raw materials are high quality limestone and bauxite. The raw materials should be mixed according to suitable ratio to pelletize.
铝酸钙熟料是以经优质的钙质、铝质原材料按适当的比例配合，经成型后烧结至部分熔融而制成。
Nowadays, most of the cement factories still use natural raw material, the quantity of natural limestone consumption is the biggest, which is 1.2 times of clinker output.
目前，绝大部分水泥厂仍然使用天然原料，其中天然石灰石消耗量最大，是熟料产量的1.2倍；
Compared with that of limestone, the properties of siliceous material will have more influence on the burnability of raw meal.
与石灰石相比，硅质原料性质对生料易烧性影响更大。
As the important raw mine or rock material, most of limestone is open - air to mine, and the large quantity ore digging result in the environment to the big influence.
石灰岩作为重要的矿物原料或石料，绝大部分为露天开采，大量的矿石开采给环境造成较大影响。
Through proper designed plan, high quality cement clinker was obtained by using low grade limestone as raw material. Samples were investigated by petrography analysis (PA) and X-ray diffraction (XRD).
以低品位的石灰石为原料，通过合理的配料方案，成功制备了性能优异的水泥熟料。
Through proper designed plan, high quality cement clinker was obtained by using low grade limestone as raw material. Samples were investigated by petrography analysis (PA) and X-ray diffraction (XRD).
以低品位的石灰石为原料，通过合理的配料方案，成功制备了性能优异的水泥熟料。
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