英语词汇“medium rank coal”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	medium rank coal
释义	medium rank coal 中煤阶煤; 国际煤层煤分类中,镜质组平均随机反射率小于2.0%,且含水无灰基高位发热量不低于24MJ/kg的煤。
随便看	covering flux covering for covering force covering force area covering for protecting against dust, rain, sunshine covering for protecting hats covering for protecting hats against dust, rain, sunshine covering for protecting (protective cover) covering gene covering graph covering grate covering group covering harrow covering homomorphism covering homotopy covering homotopy property covering homotopy theorem covering in covering in scale tiles covering knife covering (laminating) covering law model of explanation covering layer covering lemma covering letter

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