名词
中文翻译：石炭
同义词：
['coal', 'bitumen', 'lignite例句：1. The coal mine is located in the remote area of the mountain.（煤矿位于山区的偏远地区。）']
例句：
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1. The coal mine is located in the remote area of the mountain.
煤矿位于山区的偏远地区。
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2. The bitumen from the oil field has been used as a fuel source.
油田中的沥青已被用作燃料来源。
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3.The lignite deposits are rich in organic matter and can be used as a raw material for papermaking.
褐煤矿富含有机物质，可以作为造纸的原料。