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The theory basis of abrasive powder analysis method and toll joint wear monitor method was introduced.
介绍了井口磨屑分析法和工具接头磨损检测法的理论依据.
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Due to extremely slow speed, should select a very fine abrasive powder to extract the coffee.
由于速度极慢, 应选取研磨得极细的咖啡粉来萃取.
英汉双解词典包含4367426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。