| 单词 | gravity classification | 
| 释义 | gravity classification [`grav·ǝd·ē ´klas·ǝ·fǝ¦kā·shǝn]  MINING ENGINEERING The grading of ores, or the separation of waste from coal, by the differences in specific gravities of the substances.  | 
	
| 随便看 | 
	
  | 
	
科学参考收录了103327条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。