晶石

At the same calcination temperature, CoxAl(8/3-2x/3)O4 spinel is easier to be formed when acetate is used as starting salt.

在相同焙烧温度下，以醋酸钴为原料时，更容易形成CoxAl(8/3-2x/3)O4尖晶石相。

With the increase of calcination temperature, the interaction between cobalt phase and support becomes stronger, and Co3O4 gradually changes to CoxAl(8/3-2x/3)O4 spinel.

随着焙烧温度提高，活性组分与载体的相互作用加强， Co3O4相逐步向CoxAl(8/3-2x/3)O4尖晶石相转化，这可能是样品氧化活性下降和选择还原活性升高的主要原因。

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。

The bonding phase of self-fluxing sinter used before was composed predominately of cuspidine and hyaline, mechanical strength of which as well as their bonding strength with respect to magnetite are rather weak.

自熔性烧结矿的胶结相主要由枪晶石和玻璃体所组成，两者的机械强度都较低，对磁铁矿的相对胶结强度也较小。

The cuspidine is all long known as the main factor leading to the low strength o the sinter bearing fluorine, But with the fluorine decreasing by a wide margin, the strength of the sinter bearingfluorine get lower. So, the first work is to fine out the reason to cause the strength low.

含氟烧结矿中的枪晶石一直被认为是制约包钢烧结矿强度的主要因素，但随着含氟量的大幅度降低，烧结矿的强度却进一步恶化，因此，弄清影响低氟烧结矿强度的原因是提高烧结矿强度的前提和基础。

This thesis has systematically studies the microstructure of the sinter bearing fluorine of different compositions and in different sintering condition.(1) The main units of the Low Fluorine Sinter are magnetite、hematite、 SFCA、larnite、glass and pore. The cuspidine doesn't form for the low content fluorine, and the fluorine is in glass; Sinter basicity dominates the forming of the larnite and SFCA, when basicity is between 1. 72 and 1. 96, there are more larnites in the binder phase, and when the basicity is biger than 1. 96, there are more SFCA in the binder phase; the hematite appears like magnetite and usually is around pore.

为此，本文对不同组成、不同烧结条件的烧结矿样品进行了系统的显微分析和研究，其主要内容包括：(1)构成低氟烧结矿的主要组元有磁铁矿、赤铁矿、铁酸钙、硅酸二钙、玻璃体和气孔，由于含氟量的降低，枪晶石等含氟矿物并未形成，氟分布在后期凝固的玻璃体中，其中硅酸二钙和铁酸钙受碱度影响较大，硅酸二钙在碱度为1.72～1.96范围内形成较多，铁酸钙在碱度大于1.96含量增多，赤铁矿呈磁铁矿假象，多分布在气孔周围，各组元的生成顺序为：磁铁矿—硅酸二钙—铁酸钙—玻璃体。

In other words, the colour shift is not like alexandrite, colour change sapphire, spinel, or garnets where the effect is immediate.

换句话说，就是把不喜欢的颜色宝石、蓝宝石的颜色变化，尖晶石、如果是即时生效或石榴石。

The equilibrium P-T conditions of the spinel lherzolite xenoliths in the study area are: T=913~1045℃, P=13~22kb corresponding to depths of 45~83 km. The P-T conditions suggest that the geothermal gradient of the upper mantle beneath the study area is approximately similar to oceanic geotherm which may be caused by asthenosphere upwelling.

本研究尖晶石二辉橄榄岩之平衡温度大致介於913℃1045℃之间，平衡压力则介於13kb~22kb，深度大约介於 45km~75km 之间，其温压范围大多接近於大洋地区之地温梯度，此相对较高之地温梯度可能与软流圈之上涌有关。

We also report the exsolution texture of Crspinel in orthopyroxene in the studied harzburgite, and suggest that it is the result of a metamorphic reaction induced by the drastic increase of oxygen fugacity during the rapid emplacement of Darbut ophiolite.

方辉橄榄岩中的斜方辉石发育铬尖晶石出溶结构，出溶棒的成分特点表明，该结构是达拉布特蛇绿岩在快速就位过程中环境氧逸度突然升高诱发变质反应的结果。

We also report the exsolution texture of Cr-spinel in orthopyroxene in the studied harzburgite, and suggest that it is the result of a metamorphic reaction induced by the drastic increase of oxygen fugacity during the rapid emplacement of Darbut ophiolite.

方辉橄榄岩中的斜方辉石发育铬尖晶石出溶结构，出溶棒的成分特点表明，该结构是达拉布特蛇绿岩在快速就位过程中环境氧逸度突然升高诱发变质反应的结果。

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