| 1. | For this reason, the paper describes a n4i topological model of space based on spatial coordinates, at the same time, proposes an algorithm to form the model matrix
为此，本文设计了基于空间坐标的n4i空间拓扑模型，并给出了模型矩阵构建算法。 |
| 2. | topological model is one of the key technologies in gis visualization . it is favorable to gis visualization to design a topological model of space and a topological model of time that could meet the demands of gis visualization
拓扑关系(空间、时间拓扑)是制约可视化的关键技术之一，设计一个适合于gis可视化要求的空间、时间拓扑模型关系到gis可视化的更进一步发展。 |
| 3. | Topological model is one of the key technologies in gis visualization . it is favorable to gis visualization to design a topological model of space and a topological model of time that could meet the demands of gis visualization
拓扑关系(空间、时间拓扑)是制约可视化的关键技术之一，设计一个适合于gis可视化要求的空间、时间拓扑模型关系到gis可视化的更进一步发展。 |
| 4. | Topological model is one of the key technologies in gis visualization . it is favorable to gis visualization to design a topological model of space and a topological model of time that could meet the demands of gis visualization
拓扑关系(空间、时间拓扑)是制约可视化的关键技术之一，设计一个适合于gis可视化要求的空间、时间拓扑模型关系到gis可视化的更进一步发展。 |
| 5. | Moreover, by using the idea of graph theory, this paper constructs the electronic equipment structure graph and its “ dual graph ”, and electromagnetic topological model used to analyze the interaction of the different electrical components is presented
进一步借鉴图论的思想,构造出电子设备结构图及其平面图的“对偶图”,并由此建立了多层电磁屏蔽条件下分析系统电子器件之间相互耦合的电磁拓扑模型。 |
| 6. | For the development of temporal-spatial gis, the paper proposes a temporal-subsection topological model, and completes the identification of its characteristic . finally, the paper applies the temporal-subsection topological model to the temporal analysis of tgis
同时，为了促进时空gis(tgis)的发展，提出了时间拓扑模型?时段拓扑模型的设想，并进行了模型的构建，模型矩阵特征的证明等，在最后还将模型应用到了tgis系统分析中。 |
| 7. | For the development of temporal-spatial gis, the paper proposes a temporal-subsection topological model, and completes the identification of its characteristic . finally, the paper applies the temporal-subsection topological model to the temporal analysis of tgis
同时，为了促进时空gis(tgis)的发展，提出了时间拓扑模型?时段拓扑模型的设想，并进行了模型的构建，模型矩阵特征的证明等，在最后还将模型应用到了tgis系统分析中。 |
| 8. | Generally speaking, there are two approaches to environment modeling : geometrical modeling method and topological modeling method . having valued the advantages and disadvantages, this paper adopts the topological modeling method, and then plans a static collision-free path for every robot by using the heuristic a star algorithm
在分析和总结以往机器人环境建模方法的基础上，本文基于拓扑法对环境进行建模，并给出用a*算法搜索出的机器人静态无碰路径。 |
| 9. | Generally speaking, there are two approaches to environment modeling : geometrical modeling method and topological modeling method . having valued the advantages and disadvantages, this paper adopts the topological modeling method, and then plans a static collision-free path for every robot by using the heuristic a star algorithm
在分析和总结以往机器人环境建模方法的基础上，本文基于拓扑法对环境进行建模，并给出用a*算法搜索出的机器人静态无碰路径。 |
| 10. | Through the analysis of yanshan university campus network's physical topological model, logical topological model and data transfer character, etc, i build corresponding math model, make systematic analysis 、 deduction and calculation, and give some principal parameters which affect performance of lan and relationship between them
通过对燕山大学校园网的物理拓扑结构、逻辑拓扑结构、数据传输特性等的分析，建立起相应的数学模型，并对其进行了系统的分析、推导和计算。给出了影响局域网性能的主要参数及其对应关系。 |
