英语词汇“maceral, micropetrological unit”的翻译、意思、用法、释义-英汉汉英双解词典-良福网

词汇	maceral, micropetrological unit
释义	maceral, micropetrological unit 煤显微组分；显微镜下可辨认的煤的有机成分。如结构镜质体。
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