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
- advanced traffic management system
- advanced traffic management system, ATMS
- advanced transaction model
- advanced treatment for secondary effluent of municipal sewage
- advanced type
- advanced vehicle control system
- advanced vehicle control system, AVCS
- advanced vehicle control systems
- advanced vocational school
- advanced wastewater treatment
- advanced water injection
- Advanced X-ray Astrophysics Facility
- advance grouting
- Advance Land Observing Satellite
- advance of apsidal line
- advance of Mercury's perihelion
- advance of perihelion
- advance of the periastron
- advance of the perihelion
- advance performance
- advance pricing arrangement
- advance ruling
- Advances in Agronomy
- Advances in Psychological Science
- Advances In Space Research