石灰石

Or maybe it's related to corn, which is just about everywhere south of the Calumet industrial region where there isn't a limestone quarry.

这有可能与石灰石采石场有关或是同谷物有关，因为除了石灰石采石场，其南部到处都是Calumet工业区。

The results showed that the friability, abrasion and particles size distribution properties related to microstructure and source of mineral formation of limestone.

结果表明：石灰石的易碎性、磨蚀性、物料粒度特点与石灰石微观结构及矿物成因有关。

Because of the chief equipment and technic are mostly imported from the abroad presently. It is necessary to lucubrate oxidation mechanism of calcium sulfite and the main influencing factors in the oxidation of calcium sulfite, which are valuable for accelerating the oxidation Rate, consummating academic basic of lime stone-gypsum FGD and optimizing technical process A simulate equipment has been designed based on the theory of geometrical comparability which is reduced scale in geometric proportion to the 300MW capacity.

目前我国的湿式石灰石–石膏法设备和技术均从国外引进，因此深入研究脱硫过程中亚硫酸钙的氧化机制和影响亚硫酸钙氧化的主要因素，对提高氧化速度、完善湿式石灰石–石膏法脱硫技术的理论基础、优化烟气脱硫工艺过程具有重要的价值。

For instance the Ridge and Valley, which lies in the northwest corner of the state, includes limestone, sandstone, shale and other sedimentary rocks, which have yielded construction-grade limestone, barite, ocher and small amounts of coal.

例如，山脊线和山谷，位于西北角的国家，包括石灰石，砂岩，页岩和其他沉积岩，取得了建设级石灰石，重晶石，赭色和少量的煤。

Steep, subvertical limestone cliffs rising abruptly and majestically above the ground surface and highly variable and pinnacled subterranean limestone bedrock.

陡峭， 上升突然和庄严地在地面表面和高度可变物之上的subvertical石灰石峭壁和pinnacled地下石灰石根底。

CFB (Circulaiing Flued-bed Boiler), which could desulphurize by adding the lime stone in boiler, was adopted in the project of petroleum coke taking the place of oil; IGCC was adopted in coal to gas project; PC+FGD, such as limestone/plaster wet type desulfurization, liquid spray flue gas desulfurization, electron beam flue gas desulfurization and sprayed dry type desulfurization etc., was adopted in the other projects of thermoelectricity. Desulfurization inside boiler needs less running expenses but high investment and lower desulfurization efficiency.

主要为：高硫焦代油项目燃用石油焦，采用循环流化床炉内加石灰石脱硫；煤造气采用整体煤气化联合循环工艺；其余热电项目则采用煤粉炉加炉外烟气脱硫，具体的脱硫工艺选择有石灰石／石膏湿法脱硫、液柱喷射烟气脱硫、电子束法烟气脱硫以及旋转喷雾干燥法脱硫。

Formic acid promotes the limestone dissolution extremely, as to reach a high dissolution rate in a short time.

甲酸添加剂可极大提高石灰石溶解速率，使石灰石在较短的时间内达到相当高的溶解率。

The effect of metal salts on the physical structure of CaCO_3 was studied by using sodium carbonate as the additive and PoreMaster-60 mercury porosimeter.

利用添加剂调制改性的方法，考察了以碳酸钠为代表的金属盐对石灰石微观结构的影响，得出调制改性优化了石灰石的物理结构，并在离子比γ为15∶1的加入量效果最佳。

After being calcined in different temperatures under two atmospheres for 60s and 300s individually, these samples and uncalcined limestone are directly sulfidated under simulated coal gas.

对于单一的循环流化床气化炉来说，石灰石在煤气气氛下进行焙烧反应；而对于燃料部分气化的&热、电、煤气&三联产系统来说，石灰石也可以在燃烧氧化气氛下进行焙烧反应。

Thus, the energy of the pulverizing limestone can be reduced.

添加一定质量的有机酸，可以大大提高进入脱硫塔的石灰石的粒度，降低磨矿能耗，并在此基础上提出了有机酸提高石灰石溶解速率的机理。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新