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
- biological regionalism
- biological regulation networks
- biological regulation theory
- biological residue in fishery organisms
- biological residue monitoring
- Biological Resource Center of Institute Pasteur
- biological resources in China
- biological response modifiers
- biological rhythm
- biological rhythm alteration induced by space radiation
- biological rhythms
- biological risk analysis for aquatic animal health
- biological robot / bio-robot / robo-animal / cyborg
- biological sample storage technology
- biological sand fixation
- biological screening technology
- biological sedimentation
- biological sensitivity
- biological sensory
- biological sequence measurement
- biological sex difference
- biological signal processing
- Biological Societies of China
- biological soil crusts
- biological sonar system