石英

A rock fragment between 4 and 64 millimeters(0.16 and 2.51 inches) in diameter, especially one that has been natural ly roun ded.

水晶石石英断片，直径4到64毫米(0.16到2.51英寸)，尤指天然圆形的石英颗粒

Veined,stockwork and alteration-sheathed gold ores have been found in the area,belonging to four genetic types:the volcanic hydrothermal ores related to early—middle Carboniferous volcanism; subvolcanic hydrothermal ores related to intermediate—acidic porphyry intrusions; hydrothermal ores to the granitic intrusion and dynamo- hydrothermal ores related to regional dynamic metamorphism along the faults.

矿石类型有含金石英大脉型、石英网脉型和蚀变岩型。矿床成因类型有4种：一为火山热液型，其成因与区内早—中石炭世火山作用有关；二为潜火山热液型，与中酸性斑岩体侵位有关；三为岩浆热液型，与花岗质岩浆的侵位有关；四为动力变质热液型，沿断裂带分布于蚀变玄武岩中，系区域动力变质作用的产物。

The results are as follow. There are better resuk for the reactors packed with old plastics in recovery and sulphonated coal than the one filled with quartz sand, and the results of the reactors filled with fruit hull and plastics of PVC are equal to it.

结果表明，以回收旧塑料及磺化煤作为填料的BPBC处理效果优于石英砂的，而果壳、PVC塑料的与石英砂的处理效果相当。

The chemical composition, crystal morphology, fluid inclusions and thermoluminescent characteristics of non-metallic mineral s such as quartz and carbonate from the Jindoushan gold deposit were studied in detail.

对产于烟台金斗山金矿内的贯通性非金属矿物石英及碳酸盐类的化学成分、晶体习性、流体包裹体和天然热发光特征做了研究，结果表明，矿床的主成矿阶段的环境介质为酸性偏中性，富矿和贫矿石英的热发光曲线均为双峰型，但峰点温度、总积分强度有显著差异。

The suitable conditions of quartz sand filtration using for purifying the NHD decarburizing/desulfurizing solution were studied,and sand-bed backwashing method and its intensity were determined.

实验结果表明：在室温，石英砂粒径范围0.60～0.80 mm、床层高度600 mm、操作压力为0.03 MPa以及滤速为8.1 m/h的条件下，NHD脱碳液经石英砂过滤净化处理后，固体杂质去除率可达89.8%以上，且处理后的NHD脱碳液的吸收性能未变。

The suitable conditions of quartz sand filtration using for purifying the NHD decarburizing/desulfurizing solution were studied,and sand-bed backwashing method and its intensity were deter...

实验结果表明：在室温，石英砂粒径范围0.60～0.80 mm、床层高度600 mm、操作压力为0.03 MPa以及滤速为8.1 m/h的条件下，NHD脱碳液经石英砂过滤净化处理后，固体杂质去除率可达89.8%以上，且处理后的NHD脱碳液的吸收性能未变。

Heating up to higher temperature nucleates the Mg-Al titanate crystallites with morphology like the droplet phase.

随后玻璃中先后析出β-石英固溶体、假蓝宝石、金红石、方石英、堇青石等。

Basic theory anti experimental method of roamed acid reaction kinetics are presented in this paper.

介绍了泡沫酸与石英反应动力学的基本原理及试验方法，进行了泡沫酸与石英的反应动力学试验。

The result of infrared spectrum contrast analysis with standard quartz, agate and opal shows that the main mineral composition of Chaoyang petrified wood is quartz, a natural petrified organic jewel, which has a bright future in development and application.

通过与标准石英、玛瑙和蛋白石的红外光谱对比分析，研究结果表明朝阳硅化木的主要成份为石英，属天然石化型有机宝石，开发利用前景十分广阔。

Co-firing characteristics of corn stalk and stone coal in different proportion were investigated by thermal gravimetric analysis. The results showed that corn stalk can improve the ignition and combustion of stone coal. The agglomeration experiments on corn stalk were made in a bench-scale bubbling fluidized bed with quartz sand as bed material and stone coal ash as additive. The results indicate that stone coal ash can inhibit agglomeration of bed material particles at temperature of 900℃. Agglomerate of blends was analyzed by means of scanning electron microscopy, energy-dispersive X-ray, and the bed materials were analyzed by means of X-ray fluorescence. Analysis showed that aluminum element and iron element in stone coal ash can react with alkali compounds and eutectics with low melting point, form a covering layer with high melting point on the surface of biomass and quart sand particles, thus inhibit the forming and transfer of low melting compounds.

以玉米秸秆与石煤按不同比例组成的混合物为研究对象，在TG-DTG热分析仪上进行了燃烧特性分析，结果表明玉米秸秆有利于石煤的着火和稳定燃烧，对石煤有一定的助燃作用；在小型鼓泡流化床实验装置上，以石英砂为床料、石煤灰为添加剂，进行了玉米秸秆成型燃料流化床燃烧的床料黏结实验，结果表明：石煤灰能够在生物质流态化燃烧过程中有效地抑制流化床床料黏结现象的发生；通过对实验中形成的结团进行扫描电子显微镜X射线能谱(scanning electron microscopy/Energy-dispersive X-ray- SEM/EDX)，对床料进行X射线荧光光谱(X-ray fluorescence，XRF)分析，结果表明石煤灰中的Al和Fe能够与生物质灰中的碱金属化合物以及低熔点共熔物发生化学反应生成高熔点物质，并且覆盖在生物质碳颗粒与石英砂颗粒表面形成隔绝层，从而阻止低熔点物质的生成与迁移。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。