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绿玉的一种，用作宝石。A purple variety of corundum used as a gemstone.

成的星光红、蓝宝石。Synthetic corundum may synthesize into sapphire and ruby.

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关于或表示在颜色上类似另一块石头的刚玉的。Relating to or designating corundum that resembles another stone in color.

作为一种珍贵的宝石，红宝石是一种红色的矿物刚玉。Rubies, valued as precious gems, are the mineral corundum in its red form.

刚玉可能是高铝粉煤灰中典型的次生矿物。Corundum may be the typical secondary minerals in the high-alumina fly ash.

无论如何，粉红色的刚玉是最迷人美丽的宝石之一。Either way, these gems are among the most beautiful of the corundum family.

研究认为，本矿床应属深熔型混合岩化作用成因，即“混合岩型”It is considered that the deposit is an anatectic migmatite corundum deposit.

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本发明的耐磨层由六角形金属龟甲网，在网内填实刚玉形成。The said antiwear layer is made up of hexagonal metal net in which corundum is filled.

红宝石是对红色矿物刚玉的俗称，它是一种珍贵的宝石。Ruby, the common name for the mineral corundum in its red form, is a precious gemstone.

此外，还有一些特殊品种，如烧结刚玉磨具等。In addition, there are some special species, such as abrasives, such as sintered corundum.

棕刚玉磨料以铝矾土为主要原料经高温熔炼而成。Corundum abrasive with bauxite as the main raw material formed at high temperature melting.

只有红色的刚玉可称为红宝石，其他任何颜色是命名为蓝宝石。Only red corundum is entitled to be called ruby, all other colours being classified as sapphires.

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刚玉球层的位置和弹体与刚玉球的碰撞角度对弹体的侵彻深度有较大影响。The location and the position of the corundum spheres are important for anti-penetration ability.

苏北某地超基性岩中，首次发现了红刚玉，少量已达宝石级。In an ultrabasic rocks in North Jiangsu, corundum was first discovered and some was up to gem grade.

本实用新型涉及油田油井开采领域中用到的一种刚玉筛管。The utility model relates to a corundum sieve tube used in the field of oil field and oil well production.

晶相组成为圆柱状刚玉、圆粒状锆石和莫来石固溶体。The crystal phase is composed of the cylinder corundum and the circle solid solution of the zirconia and mullite.

介绍了铬刚玉透气砖的生产控制要点和在铁合金精炼中的应用方法。It introduces process control point of chrome corundum permeable brick and its application in smelting ferroalloys.

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巩义市天元刚玉磨料有限公司的诚信、实力和产品质量获得业界的认可。Gongyi city tianyuan corundum abrasives co. , LTD. Of integrity, strength and product quality obtain industry acceptance.

刚玉砖及铬刚玉砖是石化行业造气炉和反应炉的关键耐火衬里材料。Corundum brick and chrome-corundum brick are the key refractories for gasifier and reaction furnace in petrochemical industry.

研究硅酸铝及刚玉质耐火材料废料的再生利用技术。Recycling technology of aluminosilicate and corundum refractory waste to prepare high value ceramic grinding media was studied.