而且，此前在太空尘埃中还未侦测到刚玉和方镁石。
Moreover, corundum and periclase have not been detected in space dust before.
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.
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.
事实上，真正的红宝石是红色刚玉族矿物。
True rubies are, in fact, the red variety of a mineral called corundum.
本文介绍了一种新型的刚玉涂覆的超硬磨料。
In this paper a new kind of superhard abrasive with corundum-coating was introduced.
黑色，有光泽，硬度比白刚玉高，韧性较低。
Black colour, its hardness is higher than that of WA, its toughness is a bit lower.
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.
探讨了纺丝组件刚玉过滤板对尼龙66纺丝的影响。
The effect of spinning pack of corundum filter plate on spinning for Nylon 66 was studied.
弯曲生长纹是所有焰熔法合成刚玉的一个显著特征。
Curved growth lines are a prominent feature of virtually all Verneuil synthetic corundums.
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.
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.
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.
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。
Made up of the elements aluminum and oxygen, corundum also can be yellow, gray, or brown.
我公司常年向日本、韩国、欧美等国家和地区出口白刚玉产品。
Our company exports white corundum products perennially to Japan, Korea, Europe and the United States and other countries and regions.
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.
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.
用于高炉、热风炉砌筑刚玉砖、莫来石砖、硅线石砖、低蠕变高铝砖。
Used for corundum bricks , mullite bricks , silicate bricks masonry in blast furnaces , hot air stoves .
其次，研究了蓝晶石的粒度和加入量对莫来石-刚玉材料性能的影响。
Secondly, the effect of particle size and additions of kyanite on properties of mullite-corundum was studied.
最后，研究了硅线石的粒度和加入量对莫来石-刚玉材料性能的影响。
At last, this paper studied the effect of particle size and additions of sillimanite on properties of mullite-corundum materials.
首先，研究了红柱石的粒度和加入量对莫来石-刚玉材料性能的影响。
At first, the effect of particle size and additions of andalusite on mullite-corundum materials were studied.
刚玉晶体结构型氧化铬有高的着色力、高热稳定性及耐化学腐蚀等特点。
Chromium oxide green with corundum crystal structure has such characteristics as high thermal stability, high painted capacity, chemical corrosion-resisting capacity, etc.
研究成果可为刚玉块石混凝土遮弹层的工程应用和深入理论分析提供依据。
The result can provide reference for technical application and theoretical analysis of the corundum-rubble concrete shelter.
用静态坩埚法研究了加入不同添加剂的刚玉-尖晶石浇注料抗渣侵蚀行为。
The corrosion behaviors of the different additions to corundum-spinel castable refractory were studied by using static crucible method.
刚玉莫来石材料的断裂在室温下由裂纹扩展控制，在高温下由蠕变机制控制。
The rupture of corundum-mullite materials was controlled by crack at room temperature and creep at high temperature.
指与有关天然刚玉对比，具有基本相同的物理、光学及化学性能的人造材料。
It refers to artificial material with the basically the same physical, optical and chemical performances as natural boule.
在使用刚玉骨料的试验中，采用高铁棕刚玉的试样的体积密度和强度均最高。
In the experiment using corundum aggregate, the specimens prepared with high ferric oxide brown corundum aggregate has the highest bulk density and strength.
靶体为水泥砂浆石靶、钢纤维混凝土靶和含单层密排刚玉球的钢纤维混凝土靶。
These concrete targets are cement mortar, steel fiber reinforced concrete (SFRC) and the SFRC with a board made by tightly arranged corundum spheres inside.
刚玉的种类包括（红宝石、星光红宝石、蓝宝石、艳色蓝宝石、星光蓝宝石）。
The variety of boule includes ruby, starlight ruby, sapphire, beautiful sapphire and starlight sapphire.
刚玉的种类包括（红宝石、星光红宝石、蓝宝石、艳色蓝宝石、星光蓝宝石）。
The variety of boule includes ruby, starlight ruby, sapphire, beautiful sapphire and starlight sapphire.
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