晶石

This thesis makes use of Fourier transform infrared spectrometer to gems sample of oxide and the silicates to carry on a test andspectral line analysis,the oxide gems sample contain Corundum,Spinel,Quartz,Agate,Opal;The silicates gemsts sample contain Emerald,Qeridot, Garnet,jadeite.

本论文利用傅立叶变换红外光谱仪对氧化物类和硅酸盐类宝石样品进行测试和谱线分析，氧化物类宝石有刚玉、尖晶石、石英、玛瑙、欧泊；硅酸盐类宝石有祖母绿、橄榄石、石榴石、翡翠。

Almatis recently announced global price increases for tabular alumina, calcined alumina, calcium aluminate cement and spinel products.

最近，Almatis宣布公司全球范围内的片状氧化铝、煅烧氧化铝、铝酸钙水泥、尖晶石产品提价。

In ZnO varistors with antimony oxide, zinc antimony spinel produced during sintering process results a higher non-linearity and stability. The non ohmic property can also be enhanced by adding cobalt oxide or magnate oxide, but their effects are different, Co is more effective compared with Mn.

材料中添加Sb〓O〓时，烧结过程中生成的〓尖晶石相大大提高了材料的非线性和工作稳定性，Co〓O〓和MnO〓的加入有效增强了压敏电阻的非线性特性，而Co〓增强非线性特性的效果则更加显著。

Spyder is built around a Surrounding Spar Technology frame, featuring a minimalist steel center beam, surrounding the engine.

Spyder是建立在邻近的晶石科技框架，包括一个最起码的钢铁中心束，周围的引擎。

Unfortunately, bad rate capability at heavy current rate and low tap density of Li4Ti5O12 are the main impediments to commercialization .

四川 成都 610041；中国科学院成都有机化学研究所，四川成都 610041 摘要：作为一种新型锂离子电池负极材料，尖晶石型钛酸锂 Li4Ti5O12 具有使用寿命长，安全性高和热稳定性好等特点。

MgAl_2O_4 and MgAl_2O_4-MgAlON composite were synthesized in lab, and the corrosions of these two refractory materials in molten steel were investigated also.

实验室制备了MgAl_2O_4尖晶石材料和MgAl_2O_4-MgAlON复相材料，研究了钢液对两类耐火材料的侵蚀。

These systematic studies can contribute to the study of the applications of NiZn ferrite.Meanwhile,the research methods employed in this thesis can also be applied to other kind of similar ferrites and even other ceramics.

以上系统的工作，对NiZn铁氧体的实际应用具有一定的参考和借鉴价值，同时本论文中的研究方法对其它尖晶石铁氧体的研究也具有一定的指导意义。

For the TN process ladles are lined with dolomite, and for the SL process both fire clay and magnesia brick are suitable.

经钢包喷粉处理，可使钢中S.002～0.005％，P.005%，O.0015％，消除MnS型夹杂，形成不易变形的钙铝尖晶石型夹杂物。

In this research, waste activated alumina and basic magnesium carbonate were used as raw materials to synthesize magnesium aluminate spinel by double step firing process.

本研究利用废活性氧化铝与碱式碳酸镁为主要原料，二步煅烧法制备镁铝尖晶石材料。

Basaltic underplating has deepened the CMB from 32 km to 42 km. The lower crust beneath Hannuoba consists mainly of two-pyroxene granulites, with minor felsic granulites, noritic granulites, spinel pyroxenites and spinel lherzolites.

该地温梯度线表明，华北克拉通北缘的岩石学壳幔边界很可能位于约42km处，与地震莫霍面近于一致。32-35km处的尖晶石二辉橄榄岩层可能反映了古岩石学壳幔边界的位置，玄武质底垫作用造成岩石学壳幔边界的深移。

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