晶石的

Recently, a new layered LiMnO2 which have more high capacity than spinel LiMNO2, has become the hot topic of cathode of lithium-ion batteries.

最近，具有比尖晶石型的锂锰氧化物更高理论容量的层状结构的LiMnO_2，成为当前的研究热点。

The oxygen parameter as well as the mean size of interstices of tetrahedral and octahedral also appears a certain influence of silicon doping.

掺入的Si^4^+阳离子有很强的占据类尖晶石结构中四面体位的趋势，对氧参数及四面体位和八面体位的平均间隙大小也有一定影响。

However, the spinel LiMn〓O〓 and olivine LiFePO〓 are very hopeful material with low price and few toxic and higher specific capacity, etc.

本文从降低锂离子电池的生产成本和提高材料的稳定性出发，主要研究尖晶石LiMn〓O〓和橄榄石LiFePO〓的合成制备方法，以及掺杂提高电池材料的稳定性等问题。

The resultant LiMn 2O 4 synthesized under the optimum synthesis conditions has perfect spinel structure and is an excellent ca...

在最佳合成条件下，即Li／Mn＝1／2及温度800℃，制备的LiMn2O4具有完美的尖晶石结构及良好的电化学性能，完全可以用于高比能长寿命的锂离子蓄电池。

The variations of Cr# in spinel and Ti in pyroxene suggest that the Daba-Xiugugabu peridotite had a history of complex melting and an impress of mantle metasomatism. The processes of formation of the peridotites possibly include a transition from a tectonic setting to another.

尖晶石中Cr及辉石中Ti的广泛变化表明它们具有复杂的熔融历史及地幔交代作用的印记，其形成过程可能经历了两种构造环境的转变。

Estimated V〓、V〓 data from Kuandian xenoliths, combining with the observed V〓、V〓 data, imply that the composition of the uppermost mantle lithosphere within 40-50km beneath Kuandian may be composed of 50％ spinel peridotite and 50% garnet pyroxenite.

计算了不同产地深源包体的弹性波速V〓、V〓值，将宽甸地区包体波速计算值与实测地震波速资料进行对比，确定了宽甸地区上地幔岩石圈顶部的物质组成大致为50％的尖晶石橄榄岩+50％的石榴石辉石岩。

Domestic products raw material, which bastnasite was used as active component for DeSOx additives, were selected to use for the first time, the bastnasite can replace industrial cerium nitrate, it may improve DeSOx activity and abrasive resistance, due to admission bastnasite, but also reduce cost of material of DeSOx additives.

本文采用三种方法拟在活性组分的选择、活性评价及作用机理等方面对DeSOx添加剂强度进行有益的探索；尤其首次选用国产原料——氟碳铈矿作为镁铝尖晶石DeSOx添加剂的活性载体，使得氟炭铈矿可以代替工业硝酸铈，它既可提高脱硫添加剂的活性和耐磨强度，还可以降低原料成本。

The crystallographic parameter and electrochemical performance of the LiyCrxMn2-xO4 are influenced by the amount of lithium and chrome.

实验结果显示，对于尖晶石 Li1.05Cr0.05Mn1.95O4的最佳热合成温度是 750℃，而合成LiyCrxMn2-xO4样品的晶体学参数和电化学性能在很大程度上受锂和铬的含量的影响。

And then Gelmir brought forth one of those lamps for which the Noldor were renowned; for they were made of old in Valinor, and neither wind nor water could quench them, and when they were unhooded they sent forth a clear blue light from a flame imprisoned in white crystal.

接着Gelmir拿出了一盏Noldor闻名遐迩的灯——它们是很久以前在Valinor制成的，无论是风是水都不能扑灭它们；在取下灯罩后它们会从一簇束缚在白色晶石中心的火焰里发出清澈的蓝光。

Based on the field survey, we analyzed geochemical characteristics of more than 500 spinel samples from the Yarlung-Zangbu ophiolites, in order to present and discuss geneses and geodynamics of the Yarlung-Zangbu ophiolites. Mineral chemistry has revealed that the Yarlung-Zangbu ophiolites are the product of suprasubduction. This conclusion is similar to that of other related researched in recent years.

在野外调查基础上，对雅鲁藏布江蛇绿岩中500多个尖晶石样品的地球化学特征进行了分析研究，以探讨蛇绿岩的成因及其动力学背景，提出雅鲁藏布江蛇绿岩带属于超俯冲作用的产物，与近年来其他研究成果的认识一致。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐