名词
中文翻译：煤炭分析
同义词：
['coal quality analysis', 'coal quality assessment']
例句：
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1. The company's coal analysis report revealed significant differences in the quality of the coal.
公司的煤炭分析报告揭示了煤炭质量的显著差异。
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2. The coal analysis is crucial for understanding the environmental impact of mining activities.
煤炭分析对于理解采矿活动对环境的影响至关重要。
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3. The coal analysis results showed that the mine had been operating under poor conditions for many years.
煤炭分析结果显示，该矿多年来一直在恶劣的条件下运营。