查询词典 quartz

The nonmetal resources mainly distribute in North Mountain of Gaotai County, among them, 460,380,000 tons of nonmetal mines are availabile to production of industrial silicon , the silicon ore (including: quartzite, quartz sandstone and gangue) has high-grade of 98.67-99.04%, which provides rich raw materials for the production of monocrystal silicon and spathic silicon .

建设条件：高台县境内非金属矿资源主要分布在北山等地，其中可用来制作工业硅的非金属矿资源总储量就达到46038万吨，硅石(包括：石英岩、石英砂岩和脉石英)品位在98.67-99.04%之间，发展单晶硅、多晶硅产品提供了较好的条件。

Rock faces commonly show a stockwork of intersecting quartz and carbonate veins.

岩石的外表呈现交织的石英及碳酸盐细脉组成的网格构造。

The quartz grains are subangular shape, and there are dish-shape impact pits or polished surface under water environment in their surface.

石英砂表面特征为磨圆较差，有蝶形坑和水下磨光面，说明玛纳斯河湖积平原沉积环境在气候干燥时曾出现过为风力堆积。

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。

After backwashing, the regeneration ratio of the reactors filled with sulphonated coal, fruit hull, plastic of PVC and old plastic in recovery are all bigger than the one filled with quartz sand.

反冲洗后，以磺化煤、果壳、PVC塑料和回收旧塑料作填料的电解槽再生率均大于石英砂的。

As a symbol of terrigenous materials,quartz is an information carrier of paleoenvironment and paleoclimate evolutions,therefore, it has become an important proxy index of paleoenvironment and paleoclimate evolutions.

海洋沉积物中的石英作为陆源物质的标志性矿物，是古环境和古气候演化的信息载体，已成为古环境和古气候演化研究的重要替代指标。

A tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors.

一种四价非金属元素，地壳中含量仅次于氧，见于粘土、长石、石英和沙中，在晶体管中用作半导体。

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。

Mineralogic characteristics of quartz of this gold deposit, such as REE, fluid inclusion, chemical composition, unit cell parameter, infrared absorption spectrum and thermoluminescent effect, were studied systematically in this article,and some valuable information of genetic and prospecting criteria are concluded.

本文较系统地研究了该金矿床石英的稀土元素、包裹体测温、化学成分、晶胞参数、红外吸收光谱及热发光效应等矿物学特征，总结出了有重要参考价值的成因信息和找矿标志。认为康古尔金矿床主要系中深成中低温热液成因，成矿物质具深源性，直接来自围岩火山岩。

The original defined adakitesare sodium igneous rocks, they are tonalite, trondhjemite or (plagioclase-rich) granodiorite in whole-rock chemistry; however, the K-rich "C-type" adakite defined by Chinese scholars are potassic igneous rocks, they are granite, quartz monzonite and (alkali feldspar-rich) granodiorite, etc.

最初定义的埃达克岩是钠质火成岩，其全岩化学成分相当于英云闪长岩、奥长花岗岩和花岗闪长岩；而富钾的&C型埃达克岩&全岩化学成分相当于花岗岩、石英二长岩和花岗闪长岩。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。