空间、属性、时间是地理现象的三个基本特征或地理信息系统数据库的三种基本数据成分。
Space, thematic attribute and time are the three basic characteristics of geographical phenomena or the essential data types of GIS database.
然而，地学数据显著的空间特征和复杂的结构属性又不能简单运用常规的数据库管理系统进行表述、处理。
But it is very difficult to use common data-management technique based on relation database to the geological data because of their distinct spatial features and complex configurations.
空间是县域的固有属性，县域经济差异也就必然具有空间分异特征。
County economic difference has spatial characteristic, because space is its inherent attribute.
数字地形模型是空间地形数据集合的统称，是具有空间位置特征和地形属性特征的数字描述。
Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.
在使用中，必须关注人口数据本身蕴含的属性特征、空间特征和时间特征。
When population data are used, attribute character, spatial character and temporal character of population data should be paid attention.
城中村的空间行为特征是它的物质属性和社会属性在空间上的反映。
The urban village's characteristics of space-and-behavior is the reflection of its physical and social attributes.
时间和空间是一体的，是物质、能量、信息及各种事物的基本属性，建筑有着自己的时空形态和时空特征。
Time and space unite together, which is the basic attribute of material, energy, information and all kinds of things. Architecture has its own spatial and time form and characteristic.
本文探讨了地理空间要素多尺度表达在几何层次、实体层次、属性层次方面的多尺度表现特征。
The hierarchical characteristics in multi-representations for geographical features were explored, namely multi-geometries hierarchy, multi-entities hierarchy and multi-attributes hierarchy.
应该说，特征空间关系一致性和特征属性相似性是进行可靠特征匹配不可或缺的两个方面，是同等重要的。
It must be stressed that spatial relations and feature similarity are two indispensable aspects of reliable image registration, and both are of equivalent importance.
其次，针对基于属性特征的无损数字水印算法在抵抗常见的地图编辑操作时鲁棒性能较弱的不足，提出了基于空间特征的数字矢量地图水印算法。
Secondly, a digital watermark algorithm based on spatial characteristic has been discussed for the weakness of the first algorithm in resisting attacks of traditional map operations.
其次，针对基于属性特征的无损数字水印算法在抵抗常见的地图编辑操作时鲁棒性能较弱的不足，提出了基于空间特征的数字矢量地图水印算法。
Secondly, a digital watermark algorithm based on spatial characteristic has been discussed for the weakness of the first algorithm in resisting attacks of traditional map operations.
应用推荐