名词
中文翻译：煤层产率
同义词：
['coal mining capacity', 'coal production capacity']
例句：
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1. The mine's coal seamproductive capacity is significantly higher than that ofits competitors.
该矿的煤层产率远高于竞争对手。
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2. The company's newcoal seam productive capacity will increase theoutput by 30%.
该公司的新煤层产率将增加产量30%。
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3. The coal seam productive capacity isa key factor in determining the economic viability of a mining project.
煤层产率是决定矿业项目经济可行性的关键因素。