名词
中文翻译：碳化物
同义词：
['carbon carbide', 'carborundum']
例句：
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1. Thesteel was made from a mixture of ironand carbon.
这种钢材是由铁和碳混合制成的。
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2. Carbide is used incutting tools to increase their durability.
碳化物用于切削工具中，以增加其耐用性。
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3. Thecarbide was so hardthat it could not be grounddown easily.
这种碳化物非常硬，难以磨平。