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
- high lift actuation system
- High Lift Control System
- high lift system
- high light
- highlight
- highlight common valuation criteria
- high light components
- high light efficiency breeding for forage plants
- highlight plays
- High Line Park in Manhattan, NY, US
- high-loss resonator
- high-low bias test
- High-Low Method
- high luminosity spectrometer
- high-luminosity star
- highly abundant number
- highly accelerated life test
- highly accelerated stress screening
- Highly Adaptable Satellite
- Highly Advanced Laboratory for Communications and Astronomy
- highly composite ideal
- highly composite number
- highly-connected
- highly densely developed
- highly dispersed remnant