| 单词 | 矾土 |
| 释义 | 〔boule〕A pear-shaped synthetic sapphire, ruby, or other alumina-based gem, produced by fusing and tinting alumina.人造宝石：一种通过将铝熔化和染色而制成的梨形合成蓝宝石、红宝石或其它矾土宝石〔aluminous〕Of, relating to, or containing aluminum or alum.铝的，矾土的：铝或明矾的，与其有关的或包含其的〔lime〕Any of various mineral and industrial forms of calcium oxide differing chiefly in water content and percentage of constituents such as silica, alumina, and iron. Also called quicklime 石灰：氧化钙的矿物形式或工业形式，在水含量和成分构成上与硅、矾土和铁有较大差异 也作 quicklime〔latosol〕Soil that is rich in iron, alumina, or silica and formed in tropical woodlands under very humid climate with relatively high temperature.砖红壤：富含铁质矾土或二氧化硅的土壤，分布于气候湿润、具有相对高温的热带林区〔alumina〕Any of several forms of aluminum oxide, Al2O 3, occurring naturally as corundum, in a hydrated form in bauxite, and with various impurities as ruby, sapphire, and emery, used in aluminum production and in abrasives, refractories, ceramics, and electrical insulation. Also called aluminum oxide 矾土，氧化铝：一种氧化铝的形式，Al2O 3，以钢石的形式存在，水合形式存在于铝土矿中，杂有各种不纯物，如红宝石、蓝宝石、金刚砂，用于制造铝、研磨剂、耐火材料、瓷器和电子绝缘物 也作 aluminum oxide |
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