The exoplanet's atmosphere condenses out minerals such as enstatite, corundum, spinel, and wollastonite.
这颗系外行星的大气冷凝产生矿物，如：顽火辉、刚玉、尖晶和硅。
The white afrodite erosion creates the reducing of glass hardness and density,AZS corrosion creates hardness to descend,but the density to raise.
）白泡造成玻璃度和密度的下降，钻刚玉造成度下降，但是密度却有所上升。
The results have shown that the brown alundum coatings are high-class neutral refractory coatings and are used with success in iron and steel cast-ings.
试验结果表明,所研究的棕刚玉涂料是一种优质的中性抗粘砂涂料,适用于粘土砂、水玻璃砂及树脂自砂的铸型和型芯.
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Ruby and sapphire, for example, are actually the same mineral, called corundum, with a chemical formula of two aluminums and three oxygens.
例如，红宝石和蓝宝石实上是同一种矿物，叫做刚玉，为Al2O3。
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划词翻译
详细解释
产生矿物，如：顽火辉
、刚玉、尖晶
）白泡
度和密度的下降，钻
列
上是同一种矿物，叫做
为Al2O3。
