查询词典 gis

Automatic vectorization of scanned topographic maps is an important and difficult problem that needs to be solved urgently.

地形图的自动扫描矢量化是GIS领域亟待解决的一个重要难题。

More of them reached the criterion of topographical map and the requirement of map digitizing.

但大部分平台没有考虑到数字地形图的进一步利用和向GIS的转换。

It has been shown in practice that the proposed method can describe topological structure exactly and be of fairly high practical value.

经过实际应用表明，本文提出的基于GIS的农村配电网络拓扑分析方法能够正确描述系统的拓扑结构，具有很大的实用性和推广价值。

Spatial topological relationship plays an important role in organization, management and analysis of geographic data.

空间拓扑关系是GIS理论研究中的基础性问题，对各行业地理空间数据的组织、管理和分析具有重要的意义。

Toponym Geographic Information System is a part of urban GIS.

图形和属性数据是地理信息系统的重要基础。

This paper discusses the construction method of attribute data and graph data in Beijing Toponym GIS and then introduces the approach of inspecting and controlling data by using SQL in the procedure of data collection.

介绍北京一地名信息系统图形数据和属性数据的构建方法，进而介绍一种在数据采集的过程中利用SQL语言检查和控制数据的有效方法。

Keywords: Shortest path algorithm, Transportation network, Restricted searching area, GIS

试验结果显示了本文提出的限制搜索区域算法的合理性与有效性

Then a brief introduction of the basic conception and algorithm about fuzzy trapezoid number is given.

结果表明，该方法可以较好地表达GIS产品的不确定性，而且计算也十分简单。

In gas insulated switchgear the partial discharge causes ultra high frequency electromagnetic wave signals within the switchgear body.

气体绝缘组合电器(gas insulated switchgear，GIS)中的局部放电在腔体中产生超高频(ultra high frequency，UHF)电磁波信号。

An experimental model is performed in Lab to find the ultra-high frequency features of the partial discharges signals in Gas Insulated Substations.

本论文的工作是利用超高频法研究GIS试验模型中局部放电的特征。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。