石灰石

X-ray diffraction analysis,viscosity and refining of the glass in which the limestone was substituted by wollastonite were investigated.

对玻璃配合料中硅灰石取代不同比例的石灰石进行X-射线衍射、粘度和澄清效果的研究，结果表明硅灰石可以显著降低能耗，降低玻璃的粘度，提高澄清的效果。

Targeting the biomass rice stalk,we use linestone as catalyst and cracking catalyse the tar which was pyrolysised from the target.We build the rice straw biomass gasification tar removal catalytic cracking process model by the least squares support vector machine model and optimize the model parameters through genetic algorithm.We also has gotten the best catalytic cracking temperature and gas residence time, making the highest rate of catalytic cracking tar.We made wood biomass as a target analysis so that we can thermally crack tar,and we can use genetic algorithms to optimize the model parameters that is based on the wood biomass gasification pyrolysis tar removal process model through the least-squares fitting method,then we got the best pyrolysis temperature and equivalence ratio,so that it is possible to make the tar content reach the minianum.Based on the least squares support vector machine model,we had established the model of the biomass sawdust Compression molding process and fit the Optimization Parameters objective function of the molding process .

以生物质稻秆为对象，采用石灰石作为催化剂对稻秆热解焦油进行催化裂解，由最小二乘支持向量机模型建立了生物质稻秆气化焦油催化裂解脱除过程的模型，并用遗传算法对模型参数进行了优化，得到了最佳的催化裂解温度和气相停留时间，使得焦油催化裂解率达到最高；以生物质木屑作为分析对象，对其进行热裂解脱焦，并依据最小二乘曲线拟合方法建立了生物质木屑气化焦油热裂解脱除过程的模型，用遗传算法对模型参数进行了优化，得到了最佳的热裂解温度和当量比，使得焦油含量达到最小。

Effect of K2O and Na2O on the formation of alite－ sulfoaluminate cement clinker and the resultant cement was studied using limestone, pfa, clay and gypsum as raw materials.

以石灰石、粉煤灰、粘土、石膏等为原料，研究了 K2O、 Na2O对阿利特－硫铝酸盐水泥熟料矿物形成及性能的影响。

Thus,selection,design and construction process of lining anticorrosion materials are important especially.

石灰石-石膏法脱硫装置中吸收塔的腐蚀在整个装置中是最严重的，而吸收塔是整个装置中最重要的设备，直接决定脱硫效率的高低，从而对吸收塔的防腐衬里材料的选择、设计和施工尤为重要。

Common fillers are various silicates, carbonates and sulfates such as clay, limestone, calcium carbonate, magnesium carbonate, barytes, etc. Water is added to produce a filler that spreads easily when applied and drys into a hard mass.

普通填料有各种硅酸盐，碳酸盐和硫酸盐，如粘土，石灰石，碳酸钙，碳酸镁，重晶石等水是增加生产填料容易传播和应用时drys变成硬肿块。

As raw materials,and under the condition of 1 250 ℃,the high iron belite aluminate cement is made,whose mineral ingredients are 51 %～55 % of C_2S,20 %～30 % of C_4A_3,and 12 %～25 % of C_4AF;and whose strength in 1 d cement can reach(35 MPa),and that of 28 d cement can reach(66 MPa).

用高碳粉煤灰及石灰石、石膏等为原料，在1 250℃条件下烧成了高铁贝利特硫铝酸盐水泥，其主要矿物组成C2S为51%~55%，C4A3-S为20%~30%，C4AF为12%~25%；水泥1 d强度达35 MPa，28 d强度达66 MPa。

Firing belite sulphoaluminate cement with dusulphurize ash displacing gypsum and part of limestone was studied in this article.

刘辉敏，利用脱硫灰烧制贝利特-硫铝酸盐水泥研究了脱硫灰替代石膏和部分石灰石烧制贝利特-硫铝酸盐水泥。

The limestone products can be supplied with all kinds surface with honed with chamfered,bevelled, polished, flamed and brushed,rilled,ice-flowered,anti-slip surface,sandblasted, bushhammered, sawn, tumbled with all kinds size as requirement.

石灰石产品，可提供各种表面文字与斜面，斜，珠圆玉润，车架及刷牙， rilled ，冰上开花，防滑表面，喷砂， bushhammered ，锯材，重挫各种尺寸要求。

Numerical simulation show that RSM and VOF as well as Stokes Lagrange Model can commendably bewrite limestone particle Separation Mechanism of complicated 3D movement in Hydrocyclone.

数值模拟表明，雷诺应力湍流模型、自由表面多相流动模型和斯托克斯拉格朗日模型能很好地描述水力旋流器内复杂三维运动的石灰石颗粒分级运动和规律。

It is manufactured by roasting calcitic limestone in an oven or furnace.

工业上生产氧化钙是通过在熔炉中焚烧方解石质石灰石得到的，其纯度取决于原材料的纯度。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。