天然磨料 meaning in English
natural abrasives
Examples
- Methods of chemical analysis of silicon carbide abrasive grain and abrasive crude
碳化硅磨料粒和天然磨料的化学分析方法 - Methods of chemical analysis of aluminium oxide abrasive grain and abrasive crude
氧化铝磨料粒和天然磨料的化学分析方法