名词中文翻译
中文翻译：煤炭系列
同义词：
['coal group', 'coal belt']
例句：
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1.The company's new coal series is expected to boost its profits.
该公司的新煤炭系列预计将提高其利润。
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2. The coal series has been a major source of energy for many years.
煤炭系列一直是许多年来的主要能源来源。
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3. The coal series is being developed in the hope of reducing carbon emissions.
正在开发煤炭系列，希望减少碳排放。