名词
中文翻译：油页岩同义词
同义词：
['oil shale', 'bituminous coal']
例句：
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1. Oil shale is a type of sedimentary rock that contains a high proportion of oil.
油页岩是一种含有大量石油的沉积岩。
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2. The oil shale deposits are located in the northern part of China.
油页岩矿床位于中国北部。
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3. The extraction of oil from oil shale can be a complex process.
从油页岩中提取石油的过程可能很复杂。