“国家1:5万数据库更新工程”的概念、定义、翻译、参考文献-科学参考

单词	国家1:5万数据库更新工程
释义	国家1:5万数据库更新工程 Encyclopedia 工学〔专项工程〕释 National 1∶50000 Database Updating Project国家1:5万数据库更新工程以持续提高覆盖全国范围的比例尺最大、精度最高、信息最丰富的基础地理信息成果现势性为目标的动态更新。
随便看	closed extension closed family of sets closed field closed filament closed filter closed fishing areas closed fishing season closed-flux device closed fork mounting closed form closed-form number closed-form solution closed formula closed fuel cycle closed function closed geodesic closed graph closed-graph mapping closed graph theorem closed-graph theorem closed grill closed ground field closed group closed half-line closed half-plane

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。