A term that may be attached to a variable to give an expression denoting the entity satisfying some condition. From the predicate Fx it forms (ix)Fx, denoting the unique thing that is F, if there is such a thing.
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。