丝煤
词语: 丝煤
解释: mineral coal
词典: 石油专业汉英词典
丝煤 相关解释
mineral coal 〔名词〕丝煤
mineral coal 〔名词〕矿煤
mineral coal 〔名词〕煤
丝煤 fossil charcoal
丝煤 charcoallike coal
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