名词
中文翻译：硬碳
同义词：
['hard graphite', 'hard carbon black']
例句：
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1.The hard carbon is used in the production of high-quality steel.
硬碳用于生产高质量的钢材。
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2. The hard carbon is a key material for the development of new energy vehicles.
硬碳是开发新型能源汽车的关键材料。
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3. The hard carbon has excellent wear resistance and heat resistance.
硬碳具有极好的耐磨性和耐热性。