“实体关系模型”的概念、定义、翻译、参考文献-科学参考

单词	实体关系模型
释义	实体关系模型 Encyclopedia 理学数据库系统设计释 entity-relationship model实体关系模型通过客观事物及其联系进行形式化描述的数据模型。又称实体-联系模型、E-R模型。
随便看	farmer 's spare-time school farmer's vocational and skill training farmer's water use cooperation organization Farmers' Water Users Association farmers’ petition farmers’ sports Farmer’s Daily farmer’s specialized cooperative farmer’s specialized cooperative in China farm furnace farm household management farm house mortgage loan farming and reading culture Farming and Weaving Pictures Farming Books, Calligraphy and Calligraphy farming haozi farming radius farming season prediction farming song farming system Farmington Plan Farmington River farming vacation farm irrigation and drainage system farmland desertification

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。