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
- intelligent storage system
- intelligent stowage
- Intelligent Supply Chain
- intelligent system
- intelligent system of bus rapid transit
- intelligent systems
- intelligent terminal
- intelligent textile design
- intelligent tourism
- intelligent tourism three - dimensional marketing system
- intelligent traffic management
- intelligent traffic management system
- intelligent traffic monitoring system
- intelligent traffic safety system
- intelligent traffic safety system, ITSS
- Intelligent Transportation
- intelligent transportation
- intelligent transportation data management
- intelligent transportation hub
- intelligent transportation infrastructure
- intelligent transportation service
- Intelligent Transportation Society of America
- intelligent transportation system
- Intelligent Transportation Systems Joint Program Office of the U.S. Department of Transportation
- intelligent transportation system, TS