名词
中文翻译：铝土矿
同义词：
['aluminium oxide', 'alumina', 'aluminium silicate']
例句：
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1. Thealuminum oxide is used as an important raw material in the production of aluminum.
氧化铝是生产铝的重要原料。
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2. Alumina is widely used in the production of refractories and ceramics.
氧化铝在耐火材料和陶瓷的生产中广泛应用。
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3.The alumina sand is used as a filler in the production of concrete.
铝矾土砂用作混凝土的填料。