矿

The nanophase anatase of different size (the average is 40 nm) was synthesized with chemical precipitation method.

采用化学沉淀法制备出 40nm的锐钛矿，并用拉曼光谱对纳米和块体锐钛矿到金红石的相转变过程进行了研究。

Because the increasing of dip angle can lead to special strata behavior which cause difficulties to mining, The strata behavior theory can not be simpely borrowed from that of flat and gently inclined seams. In order to cut down roof accidents and increase production efficiency, the strata movement and stress distribution must be reassessed for seam with deep dip angle.

煤层倾角增大带来了矿压显现的特殊性和开采上的困难，不能再简单地借用水平和缓倾斜煤层的矿压理论，而必须对大倾角煤层围岩运动与应力分布予以重新评价，以降低顶板事故，提高生产效率。

The results showed that the trace elements were not anomalously enriched. Zn and Cu existed in sphalerite. Cr, Pb and Cd were adsorbed by clay minerals. Ba might exist in ankerite and calcite. Ni, Mo, Co and As mainly existed in pyrite. Be and Se were combined with organics. Many trace elements were difficult to volatilize. Because of high content and volatility, Pb and Zn, are harmful to environments; Zn and Pb separately exist in sphalerite and clay minerals, so it is easy to reduce their environmental damage by washing and processing of coal.

结果表明：研究的元素没有异常富集；Zn和Cu赋存于闪锌矿中，Cr、Pb和Cd被粘土矿物吸附，Ba可能赋存于铁白云石和方解石中，Ni、Mo、Co和As主要赋存于黄铁矿中，Be和Se以有机结合态存在；研究的元素大多不易挥发，但Zn和Pb易挥发，且含量较高，环境危害较大，Zn和Pb分别赋存于闪锌矿和粘土矿物中，可通过洗选脱除减小其危害。

Arc furnace,it is put forward that an optimum heat distribution relationship exists between the reaction area and furnace charge area,in view of this,a simple smelting model of submerged?arc furnace is set up.

摘 要 从铁合金矿热炉内的等效电路及其热分布出发，提出冶炼过程中炉内反应区和炉料区之间存在着一个最佳的配热关系，由此而建立起铁合金矿热炉简单的熔炼模型。

Base on the study about precious metal mineralization and ore-controlling structures , it is realized that ductile shear zones, especially those developed in the Archean granite-greenstone belt, are the most important ore-controlling structures .

国内外贵金属与控矿构造研究表明，韧性剪切带，特别是发育在太古宙古老陆核花岗—绿岩地体中的韧性剪切带是最重要的控矿构造。

Mineralization consists of galena, sphalerite, pyrite, and minor chalcopyrite, tetrahedrite and argentite in a gangue of mainly quartz and clay minerals.

矿化包含方铅矿、闪锌矿、黄铁矿、次生黄铜矿、及主要物质为石英和粘土矿物脉石内的黝铜矿和辉银矿。

Based on a systematic study of a considerable number of polished ore sections as well as ICP-MS and electron microprobe analyses, the authors have found that the main sulfide minerals include galena, iron-poor sphalerite and chalcopyrite, whereas silver minerals are composed chiefly of native silver, pyrargyrite, argentite, polybasite, and argentiferous freibergite.

文章首次对其矿石矿物进行了系统的研究，通过对大量矿石光薄片观察、等离子质谱和电子探针分析，表明具有工业意义的硫化物主要有方铅矿、贫铁闪锌矿、黄铜矿，银矿物主要有自然银、深红银矿、辉银矿、硫锑铜银矿、含银黝铜矿，它们与硫化物共生，多沿方铅矿、贫铁闪锌矿等颗粒间或者裂隙产出。

In this papers, the recovery of vanadium from the argillaceous vanadium ore was studied detailedly in Xichuan of Henan province, where the content of vanadium is about 2.05%.

本文对河南淅川的粘土钒矿的提钒工艺进行了详细研究，实验所用钒矿V_2O_5的含量为2.05％。

The test results have shown that the combined depressants are distinctively effective to depress arsenopyrite and activate galena,stibnite and chalcopyrite to certain extent.

在此基础上，选择了湖南省瑶岗仙钨矿精选工段含砷高达26%的硫化矿为对象，进行天然矿石的铜-砷分离试验，获得了极好的分离效果。

The main mineral in the ore is marmites, pyrrhonist and arsenopyrite, rich in silver, gallium, germanium, indium and other rare metals.

摘 要：原矿中的主要金属矿物是铁闪锌矿、磁黄铁矿和毒砂，富含银、镓、锗、铟等稀贵金属。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。