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1·Rubies, valued as precious gems, are the mineral corundum in its red form.

作为一种珍贵的宝石，红宝石是一种红色的矿物刚玉。

2·True rubies are, in fact, the red variety of a mineral called corundum.

事实上，真正的红宝石是红色刚玉族矿物。

3·Moreover, corundum and periclase have not been detected in space dust before.

而且，此前在太空尘埃中还未侦测到刚玉和方镁石。

4·Relating to or designating corundum that resembles another stone in color.

关于或表示在颜色上类似另一块石头的刚玉的。

5·Either way, these gems are among the most beautiful of the corundum family.

无论如何，粉红色的刚玉是最迷人美丽的宝石之一。

6·Ruby, the common name for the mineral corundum in its red form, is a precious gemstone.

红宝石是对红色矿物刚玉的俗称，它是一种珍贵的宝石。

7·In this paper a new kind of superhard abrasive with corundum-coating was introduced.

本文介绍了一种新型的刚玉涂覆的超硬磨料。

8·Made up of the elements aluminum and oxygen, corundum also can be yellow, gray, or brown.

由铝和氧两种元素构成的刚玉，会呈现出黄色、灰色或者棕色。

9·Made up of the elements aluminum and oxygen, corundum also can be yellow, gray, or brown.

制造的基础是氧化铝，金刚砂可以是：黄色，灰色和棕色。

10·The effect of spinning pack of corundum filter plate on spinning for Nylon 66 was studied.

探讨了纺丝组件刚玉过滤板对尼龙66纺丝的影响。

刚玉

1·Moreover, corundum and periclase have not been detected in space dust before.

而且，此前在太空尘埃中还未侦测到刚玉和方镁石。

2·Rubies, valued as precious gems, are the mineral corundum in its red form.

作为一种珍贵的宝石，红宝石是一种红色的矿物刚玉。

3·Ruby, the common name for the mineral corundum in its red form, is a precious gemstone.

红宝石是对红色矿物刚玉的俗称，它是一种珍贵的宝石。

4·At the same time, some of the same or higher hardness material, such as diamond, corundum, metal oxide, quartz crystals are likely to damage the material.

同时一些硬度相同或更高的物质，例如钻石、刚玉、氧化金属、石英水晶都有可能损坏这些材料。

5·The crystals were housed in magnificent Temples, some built of marble, others of crystalline sheets of beryl, corundum and diamond.

水晶被安置在宏伟的神殿里，一些为大理石建造，其他的由绿玉，刚玉，钻石建成。

金刚砂

1·In the design of balanced seal, the barrel type seal has adopted a new-type material of wear resistant corundum to enable no failure for many years.

在平衡密封设计中，筒式釉封采用了新型耐磨金刚砂材料，具有常年无故障性能。

刚玉质

1·Being as two layer refractory lining on valve plate and valve body, light mullite and phosphate corundum refractory castables are taken as heat isolation and heat resisting layers respectively.

阀板、阀体的耐火衬里隔热层采用莫来石轻质耐火浇注料、耐热层采用磷酸刚玉质耐火浇注料，进行两层浇注。

2·Recycling technology of aluminosilicate and corundum refractory waste to prepare high value ceramic grinding media was studied.

研究硅酸铝及刚玉质耐火材料废料的再生利用技术。

3·The simple preparation methods and research of corundum refractory castables made with several bonding methods and their applications in various industries are described.

介绍了几种结合方式的刚玉质耐火浇注料的简单制备方法、研究情况及在各行业中的应用现状。

(1)corundum products刚玉制品

(1)corundum brick刚玉砖