工学 空间数据模型 释 spatial data model 空间数据模型 地理信息系统（GIS）中空间数据组织的概念和方法。反映现实世界中空间实体及其相互之间的联系，是描述GIS空间数据组织和进行空间数据库设计的理论基础。
数据库 数据库理论 释文 spatial data model 空间数据模型
- Drakensberg
- Drake Passage
- Drake's Well
- Drak Yerpa Dongkuqun
- DRAM
- Drama
- drama
- drama-actor’s training
- Drama and Film
- Drama and Film Monthly
- Drama and Film Training Course of Jinxing Film and Drama Company
- Drama Association
- Drama class
- Drama club
- Drama College The Hong Kong Academy for Performing Arts
- drama crisis
- Drama Department Lu Xun Literature and Art University
- Drama department People's Liberation Army Academy of Art
- Drama Department, School of Arts, National Beiping University
- drama director's explication
- Drama Era
- Drama for Peasants
- Drama Group
- drama in anti-Japanese base area
- Drama in Education