“对象-关系数据库”的概念、定义、翻译、参考文献-科学参考

单词	对象-关系数据库
释义	对象-关系数据库 Encyclopedia 理学数据库系统释 object-relation database对象-关系数据库基于对象-关系数据模型，通过支持复杂数据类型扩充关系模型。
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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。