1. The action of intensifying the purity or strength of a material, such as by the action of adding or removing a substance. For example, a solution of salt water can be concentrated by the evaporation of the water.
2. A product of concentration.
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。