“ore grader”的概念、定义、翻译、参考文献-科学参考

单词	ore grader
释义	ore grader [`ȯr ´grād·ǝr] ^{MINING ENGINEERING} In metal mining, a person who directs the storage of iron ores in bins at shipping docks so that the various grades in each bin will contain approximate percentages of iron.
随便看	optical gage optical galaxy optical glass optical harmonic optical haze optical horizon optical indicator optical indicatrix optical information processor optical information system optical instrument optical interference optical isolator optical isomer optical isomerism optical Kerr effect optical landing system optical lantern optical length optical lens optical lever optical lithography optically coupled isolator optically effective atmosphere optically pumped laser

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