名词中文翻译
中文翻译：煤层
同义词：
['coal seam', 'coal bed例句：1. The coal facies in the area is rich in minerals.（该地区的煤层富含矿物质。）2. The geologist studied the coal facies to understand its formation process.（地质学家研究了煤层，以了解其形成过程。）']
例句：
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1. The coal facies in the area is rich in minerals.
该地区的煤层富含矿物质。
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2. The geologist studied the coal facies to understand its formation process.
地质学家研究了煤层，以了解其形成过程。
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3. The coal facies has been used for centuries as a fuel source.
煤层作为一种燃料资源已经使用了数百年。