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
- the conclusion of collective agreement
- the conclusion of labor contract
- The Concubine's Children
- The Condition of the Working Class in England
- the confirmation,registration or evaluation of tea national variety
- the conflicts of rights
- The Confucian Classics Discussions in Bai Hu Hall Meeting
- The Confucian Prose of Chu Bamboo Slips in Guodian
- The Confusion Assessment Method for The Intensive Care Unit
- The Conscious Lovers
- The Conscription
- the consequences of the victim
- the conservation of architectural heritage in 20th century
- the conservation of industrial heritage
- the conservation project of Baiheliang in Peiling
- the conservation project of Shibaozhai in Zhongxian
- the consistence between history and logic
- The Consonantal System of Old Chinese
- The Conspiracy of Shaqiu
- the constitutional protection movement
- The Constitution of Athens
- the constitution of crime
- The Constitution of Liberty
- The Constitution of Society
- The Constitution of the German Empire