“History of Liao Dynasty”的概念、定义、翻译、参考文献-科学参考

单词	History of Liao Dynasty
释义	History of Liao Dynasty Encyclopedia 历史学辽朝释 History of Liao Dynasty《辽史》记录中国辽朝史事的官修纪传体史书。
随便看	positive relation positive result positive root positive root system positive rotation positive school of criminology 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

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。