“专利检索系统”的概念、定义、翻译、参考文献-科学参考

单词	专利检索系统
释义	专利检索系统 Encyclopedia 管理学专利检索系统释 patent retrieval system专利检索系统由专利信息数据库与计算机检索软件共同组成的专门用于检索专利信息的工具。
随便看	positive quadratic differential positive quadratic form positive quantity positive ray function positive real axis positive real control positive real function positive real number positive real part positive real system positive recurrent point positive recurrent state positive reinforcement 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

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。