英语词汇“grade of coal”的读音、翻译、释义、用法及例句-开邑网

词汇	grade of coal
释义	grade of coalgrade of coal1.■煤分级;煤级;煤炭分类;煤炭品质分类
随便看	static distortion static divider static draft static draft head static drift static drive type static dump static dust static-dynamic balance static-dynamic strainometer static/dynamic universal testing machine statice static earth sensor static economics static economy static effect of conjugation static efficiency static electricity static electricity discharge static electricity earth static electricity eliminator static electricity machine static electricity on human body static electricity protection grounding static electricity resistance

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