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
- large dimension
- large dispersion
- Large Dragon Stamps
- Large Ear Field Mouse
- Large Earth-based Solar Telescope
- large eddy simulation
- large eddy simulation (LES)
- large eddy simulation model
- large electronic display panel
- Large Electron Positron Collider
- large electroslag melting process
- large envelope flight control
- Large Field Multi-Color Sky Survey
- large fire
- large flow sampler
- large-footprint LiDAR
- large format camera，sheet film camera，flat film camera
- large granular lymphocytic leukemia
- Large Hadron Collider
- large hadron collider
- large hadron collider beauty
- large hadron collider, LHC
- large hadron electron collider
- largehead atractylodes rhizome
- largehead hairtail