The process of separating the ingredients of a fluid mixture by progressive heating, to vaporize ingredients in descending order of their volatility, followed by cooling to condense the vapours.
Mike Allaby
科学参考收录了60776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。