crushing and separating ore into valuable substances or waste by any of a variety of techniques
同义词：mineral extraction??/??mineral dressing??/??ore processing??/??ore dressing??/??beneficiation
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。