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
- acoustical thermometer
- acoustic amplitude logging device
- acoustic attenuation coefficient
- acoustic barrier
- acoustic birefringence
- acoustic blur
- acoustic borehole imaging logging device
- acoustic boundary layer
- acoustic branch
- acoustic cabin
- acoustic capacitance
- acoustic cavitation
- acoustic-celotex
- acoustic-celotextile
- acoustic characteristic impedance
- acoustic characteristics of rock mass
- acoustic cloaking
- acoustic compliance
- acoustic conductance
- acoustic constant
- acoustic correlation log
- acoustic coupler
- acoustic coupling agent
- acoustic current meter by time difference method
- acoustic damping coating