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
- Yunnan poplar
- Yunnan Province
- Yunnan Province Huadeng Opera Theatre
- Yunnan Province Nursing School Canary Phoenix
- Yunnan Provincial Archives
- Yunnan Provincial Library
- Yunnan Provincial Museum
- Yunnan Publishing Group Co.,Ltd.
- Yunnan Rabbit
- Yunnan semi-fine-wool sheep
- Yunnan Sheng
- Yunnan Shilin World Geological Park
- Yunnan snub-nosed monkeys
- Yunnan sun-dried green tea
- Yunnan-Tibet coal occurrence area
- Yunnan Tongbiguan Shengji Ziran Baohuqu
- Yunnan University
- Yunnan University of Chinese Medicine
- Yunnan-Vietnam Railway
- Yunnan water conservancy
- Yunnan wrestling
- Yunnan Wumeng Shan Shengji Ziran Baohuqu
- Yunnan Xishuangbanna National Nature Reserve
- Yunnan Yang-qin narrative singing music
- Yunnan Yuanjiang Guojiaji Ziran Baohuqu