Apparently, spatial operation is a very important part of GIS.
显然，空间运算是GIS系统相当重要的部分。
Overlap analysis is a widely used spatial operation for the needs of spatial analysis in GIS.
叠置分析是GIS进行空间分析时常用的一种空间操作。
The amended GTP model synthesized the merits of tin, GTP and tetrahedron, and its constructing algorithm was simple and the spatial operation on it is seamless.
修正后的GTP模型集成了TIN, GTP和四面体模型的优点，构建算法简单且空间操作无缝。
To achieve some reliable results, we executed the import operation and queries several times and averaged the measured times. The spatial operations are the following.
为得到比较可靠的结果，我们多次执行导入操作和查询，对测量到的时间取平均值。
Polygon overlay is spatial operation in which a first thematic layer containing polygons is superimposed onto another to form a new thematic layer with new polygons.
几何图形叠盖是包含几何图形的第一主题图层被叠加形成新主题图层以新的几何图形的空间操作。
Polygon overlay is a spatial operation in which a first thematic layer containing polygons is superimposed onto another to form a new thematic layer with new polygon.
多边形叠合是一种空间操作，在第一个包含多边形的主题层中叠上另一个由多边形组成的主题层。
As well as offering generous spatial qualities this structure also ensures a high level of flexibility and adaptability for the long-term operation of the museum.
除了提供宽敞的空间特性，这种结构还保证博物馆在长期运行中的高度灵活性和适应性。
In the soil resource management information system based on GIS, the most basic operations are the operation of map, the attribute data inquiry and statistics and spatial data inquiry as well.
在基于GIS的土壤资源管理信息系统中，最基本的操作是对地图的操作、属性数据的查询和统计以及空间数据的查询。
With the expanding of GIS application, multi-user concurrent operation becomes the basic demand for spatial data engine.
随着GIS应用的扩大，多用户并发操作成为空间数据引擎的基本要求。
This issuance system possesses multi-functions of map-layer control and management, data searching and retrieval, and spatial analysis operation of basic information.
该网络发布系统具有图层控制与管理、数据查询检索、基本信息的空间分析操作功能。
The system was provided with function of workspace, data and map management, object operation, spatial query and analysis in the environment of GIS.
该系统具有GIS工作空间管理功能、数据管理功能、地图管理功能、对象操作功能、查询及空间分析功能；
By using graphic editor function and spatial analysis faculty of GIS, various especially function of graphic editor and area statistic for land-use operation are provided in this system.
系统采用GIS的图形编辑功能和空间分析功能，提供了多种规划特色的图形编辑功能和土地管理中专用的面积统计功能。
It is the main application of data warehouse systems, and it can present intuitionistic and pellucid result through complicated spatial analysis operation.
是空间数据仓库系统的主要应用，它通过复杂的空间分析操作，为决策者提供直观易懂的查询结果。
Spatial Database can supply high-powered capability of storing and managing spatial object, well capability of organizing and restricting spatial data, optimized spatial analysis operation function.
空间数据库能够提供高效的空间对象存储管理能力，良好的空间数据组织和约束能力，优化的空间分析操作功能。
Its efficiency is directly decided by the main operation and spatial data structure.
空间分析的效率由空间数据结构和主要空间操作所决定。
Spatial information and temporal information of geo-objects are split by spatial dataset and objects operation log, and they are integrated with object identifications and versions.
通过空间数据集和目标操作日志表创造性地将地理对象的空间信息和时态信息分开，又通过目标标识和版本号联系在一起。
Query operation in spatial database require some special support at the physical level as well as in conventional database.
空间数据库与传统数据库一样，在其物理层上要求有一些专门结构来支持搜索操作。
It has elementarily realized functions of the release of spatial data for soft rock mining, interactive operation on Internet, query and analysis of soft rock mining attributes.
该系统初步实现了软岩空间信息的展示及交互操作，软岩属性信息的查询和分析。
Various approaches have been taken to eliminate spatial hole burning, in order to achieve single frequency operation, the most widely used being the unidirectional ring laser.
为了使激光器单频运转，应用了许多方法来消除空间烧孔。
The formations of city spatial forms are the results of the co-operation of general rule of market and the exceptive city legacies.
城市空间形态是市场机制的普遍规律和城市特定的禀赋条件共同作用的结果。
Based on the analysis of spatial harmonics of periodically slotted structure the method for extending operation frequency-band through suppressing higher-order harmonics is discussed.
基于周期性槽孔结构的空间谐波的分析，讨论了抑制高次谐波以拓展使用频带的方法。
The relation of the propagation error after spatial analysis such as arithmetic operation and logic overlay could be attained easily at the foundation of above.
以此为基础可以很快地导出基于确定的算术运算和逻辑叠加等空间分析操作后的误差传播关系。
Finally, according to the definition of difference, this article judges the imperceptibility of watermark algorithm for the GIS vector data through the operation of spatial analysis.
最后，本文从差异性定义出发，通过空间分析操作，判断面向GIS矢量数据水印系统的不可感知性。
Absrtact: spatial data editing is an important part of cartography, and spatial data moving and node operation may affect the accuracy of the map.
摘要：空间数据编辑功能是地图制图中的重要组成部分，当进行多个空间数据移动以及进行结点操作时，会影响地图精度。
In spatial search test the swimming initial Angle of the model group was larger than that of the sham-operation group.
在空间搜索实验中，模型组大鼠游泳初始角度显著大于假手术组。
Simple, fast and adaptive spatial filtering and arithmetic operation are adopted by the algorithm and image quality is improved.
该算法采用了简单快速的自适应空间域滤波和代数运算，提高了图像质量。
Results in all the patients 3d-cta clearly showed the 3d spatial relationship among the meningiomas, vessels and skull bones surrounding the tumors, which was similar to that found by the operation.
结果本组所有病例3d -CTA图像均可较清楚并立体地显示肿瘤与血管、颅骨及周围结构关系，与手术中所见相吻合。
The spatial distribution of the pump laser and the oscillating laser is very important for the operation of single transverse.
泵浦光与振荡光的空间分布，对于基横模的运转是非常必要的；
The spatial distribution of the pump laser and the oscillating laser is very important for the operation of single transverse.
泵浦光与振荡光的空间分布，对于基横模的运转是非常必要的；
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