英语词汇“grey manganese”的意思、释义、用法解释及翻译-春雷网

词汇	grey manganese
释义	Definition of grey manganese in English: grey manganese (US gray manganese) noun Mining rare (Also "grey manganese ore") either of two minerals containing manganese, manganite and pyrolusite. Origin Late 18th century. Definition of grey manganese in US English: grey manganese (US gray manganese) noun Mining rare (Also "grey manganese ore") either of two minerals containing manganese, manganite and pyrolusite. Origin Late 18th century.
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Definition of grey manganese in English: