“国家水文数据库”的概念、定义、翻译、参考文献-科学参考

单词	国家水文数据库
释义	国家水文数据库 Encyclopedia 工学水利信息资源体系释 national hydrological database国家水文数据库存储水文数据和提供水文信息服务的中国国家基础数据库系统。
随便看	upper semi-continuous upper semicontinuous upper semicontinuous decomposition upper semicontinuous equivalence upper semicontinuous function upper semi continuous mapping upper semi-continuous mapping upper semicontinuous mapping upper semicontinuous partition upper semi-lattice upper semi-modular lattice upper semisphere upper series upper set upper side frequency Upper Silesia Coalfield upper singular exponent upper solution upper solution; supersolution upper-stage upper stage liquid rocket engine upper strong derivative upper subsemilattice upper sum upper surface

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。