“殷瑞钰”的概念、定义、翻译、参考文献-科学参考

单词	殷瑞钰
释义	殷瑞钰 Encyclopedia 工学﹝矿冶人物﹞释 Yin Ruiyu殷瑞钰（1935-07-28～）中国冶金学家、工程哲学开拓者。
随便看	positive selection positive self-adjoint operator positive self-regard positive semi-definite positive semi-definite form positive semi definite Hermitian matrix positive semi-definite Hermitian matrix positive semi-definite kernel positive semi definite matrix positive semi-definite matrix positive semi-definite operator positive semi definite quadratic form positive semi-definite quadratic form positive semi-definite rational function positive semigroup positive semiorbit positive semi-trough positive sense positive sense single-stranded RNA virus positive sequence positive series positive side positive sidelight positive sign positive skewness

科学参考收录了854744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。