刚玉

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。

We specialize in Peridot, Garnet, Aquamarine, White topaz, Blue topaz, Amethyst, Citrine, Smoky quartz, Ruby, Sapphire on natural gemstone, and white cubic zircornia, Colored cubic zirconia, Glass, Thulium, Corundum, Spinel on synthetic gemstone.

我们专注于橄榄石，石榴石，海蓝宝石，白黄玉，蓝黄玉，紫水晶，黄，烟晶，红宝石，蓝宝石对天然宝石，白立方zircornia ，彩色立方氧化锆，玻璃，铥，刚玉，尖晶石合成宝石。

Sintered corundum abrasives are aluminum oxide powder and mixed the right amount of chromium oxide, forming, sintering at about 1800 ℃ made.

烧结刚玉磨具是用氧化铝微粉和适量的氧化铬混合、成型，在1800℃左右烧结制成。

The former general with corundum and silicon carbide abrasive, while the latter such as diamond and cubic boron nitride superabrasive made.

前者用刚玉和碳化硅等普通磨料，后者用金刚石和立方氮化硼等超硬磨料制成。

The former use of corundum and silicon carbide abrasive, such as ordinary, the latter with diamond and cubic boron nitride and other superhard abrasive made.

前者用刚玉和碳化硅等普通磨料，后者用金刚石和立方氮化硼等超硬磨料制成。

In addition to the usual aluminum oxide wheel and general grinding condition, artificial diamond wheel, cubic boron nitride wheel and two variations of grin ding condition were also used in the test.

在磨削试验中，除按照生产中常用的刚玉砂轮及常用的磨削条件外，还用了人造金刚石砂轮、立方氮化硼砂轮及其相应的磨削条件。

Meanwhile,it can be used as catalyse carrier,insulator and presicion founding sand,etc.

白刚玉磨料还可用做触媒体，绝缘体以及精密铸造砂等。

It has been found that corundum crucible can improve the anti-crystal stability and transparency of the glasses. Porcelain and platinum crucibles were corroded very strongly and the glass composition was noticeably altered.

结果表明：使用刚玉坩埚能提高玻璃的抗析晶稳定性和透过率，陶瓷坩埚和白金坩埚均收到严重地腐蚀，玻璃组分也随之发生很大的变化。

Corundum dopped with impurity not only is cherished because of its beautiful appearance,but also is used in the fields such as electrotechnics, mechanism, laser, the optic apparatus and the underlay of semiconductor.

含有少量杂质的刚玉晶体(α-Al_2O_3)不仅由于其色泽艳丽成为人们珍爱的名贵宝石，而且由于它具有的优异性能，被广泛应用于电工、机械、激光器，光学器件和半导体衬底材料。

The furnace shell welded by steel plate and steel,fused al-umina produced by the furnace or masonry from Liner.

炉壳由钢板和型钢焊接而成，炉膛由电熔刚玉制成或衬板砌筑而成。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。