理学 数据库系统 释 data model 数据模型 数据库领域中定义数据及其操作的抽象表示方式。数据模型是数据库系统的核心和基础。各种数据库管理系统（DBMS）软件都是基于某种数据模型的。
data model 数据模型
数据库 数据库理论 释文 data model 数据模型
- Biography of the Flying Monkey
- Biography of the King Mu of Zhou Dynasty
- Biography of the Martyrs
- Biography of Three Gods in Hailing
- Biography of Wang Youyu
- Biography of Wen Wan by Qingxuzi
- Biography of Xu Wenchang
- Biography of Ye Jia
- Biography of Yingying
- Biography of Yue Fei, block-printed edition on document paper by Wu Anchao et al. (1271), seventh year of the Xianchun era, Song Dynasty
- biography style
- bio-heat transfer model
- bioholography
- bio hydrogen
- bio-hydrogen
- biohydrometallurgy
- bioimaging
- bioimaging polymer
- bioimpedance
- bioinert materials
- Bioinformatics
- bioinformatics
- bioinformatics analysis
- bioinformatics database
- bioinformatics databases