topological expression 中文意思是什麼
topological expression
解釋
拓撲表達式- topological : 拓撲的
- expression : n 1 表現，表示，表達。2 詞句；語句，措辭，說法。3 表情，臉色，態度；腔調，聲調。4 【數學】式，符...
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The main content that this paper studied inludes : development of gis and its application in the power industry ; gis data model analysis, the expression and operation of the distribution data in electric gis ; the structure of electric gis database and design, coding methods of data ; topological analysis of the distribution network ; gis and scada integration, mainly researches into scada and gis interface, discusses purpose and benefit for integration of them by analysis of scada system and its database used by to haikou local dispach
Gis數據模型分析，電力gis中配電數據的表達和操作;電力gis數據庫的結構和設計、數據的編碼方法。配電網路拓撲分析。 gis與scada集成，主要研究scada與gis介面，並針對海口地調的scada系統及其數據庫，討論兩個系統集成的目的和益處，對兩個系統的連接提出實現技術。 -
The first generation spatial analysis database system, sadbs, uses " realms " as expression base of spatial data. it adopts discrete integer coordinate system to solve topological error in spatial database. it also uses multi - index data organization and plane - sweep algorithm, which improve the performance of spatial analysis operations
第一代空間分析數據庫系統sadbs使用realms作為空間數據的表示基礎，它利用離散化的整數坐標系統，解決了空間數據庫的拓撲誤差問題；使用多索引的數據組織方法，引入平面掃描演算法，提高了空間分析操作的性能。 -
With consideration of the relation between two distinct topological structures, a simple self - consistent way is used to improve this expression
並且從二元無規混合物的兩種拓撲結構出發，用自洽的方法改進了該二元無規混合物的有效介電常數計算公式。
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