查询词典 gis

Emote sensing and geographical information system is indispensable technological means, when we study landscape spatial patterns evolution.

S和GIS是开展景观空间格局演变研究的不可缺少的重要技术手段。

Three centers of endemism were identified by overlapping distribution maps, namely the "Hengduanshan Mountain areas","Mountain areas in north Sichuan Province and Qinling as well as south Gansu Province", and "Taiwan Island".

在广泛搜集有关分布资料、对我国鸟类特有种的地理分布情况进行系统整理并建立数据库的基础上，运用GIS技术处理物种分布数据，研究了中国鸟类特有种的多样性及其分布格局。

Considering the enforceability in the real applications,it gives the optimization plans and analyzes the advantages and disadvantages.

1概述目前获得实际应用的Web GIS系统，大部分限于小数据量的基于浏览查询的模式。

Potential Species' Distribution System, a new GIS-based system, has been designed and implemented to predict the potential distribution of species by using presence data only. The result, normally overpredicted by traditional Environment Envelope Model, is improved by using hierarchical cluster arithmetic that can reduce the influence caused by outliers.

在这一系统中，通过层次聚类算法对物种已知分布点数据进行处理，减少了异常值对预测结果的影响，从而解决了环境包络模型预测结果过于乐观的问题，在物种已知分布数据较少时也能取得较好的结果。

Based on the water resources survey of Shanghai in 1999 and the 1:50 000 color infrared aerial photos obtained in early 2000, a case study of the upper Huangpu River was carried out. The exponential method, pair-sample t test, and remote sensing analysis are used to analyze water environmental characteristics and land use pattern in the river network plain. In order to explore response of water quality in the waterhead region to the changes in land use and its driving force, five land use patterns are selected and a new type of exponential is designed.

以黄浦江上游水源地为例，利用1999年上海水资源普查数据及2000年初成像的上海市1：50000彩红外航空像片，采用GIS空间分析技术、灰色关联分析技术，划分土地利用样带，设计水质改善指数，探讨平原河网地区水环境质量对土地利用结构的响应，以及水源水质对土地利用变化驱动力的响应。

The model of forest fire prevention based on GIS.

基于地理信息系统的防火预测模型。

But not all of our four-legged GIs make it home.

但我们四条腿的士兵并非都能回家。

Map Projection ; Map Projection Transformation ; The Gauss Projection ; GIS

地图投影；地图投影变换；高斯投影；地理信息系统

It is useful for the direct and inverse solution of geodesic problem and applying in digital elevation model and 3D GIS model. geodesic coordinate system ; direction angle ; geodesic line ; differential relationship

本文则进一步探讨测地坐标的一些微分性质和微分关系式。1 基于测地坐标的大地线的二阶微分方程按照曲面的内蕴几何学，由

The research and application of GIS have permeated into many fields such as geography, geognosy, environmental inspection, land use,traffic security and so on.

摘要自从1963年地理信息系统这一概念诞生以来，地理信息系统的理论和技术方法已得到了飞速的发展，其研究和应用己渗透到自然科学及应用技术的很多领域，如地理学，地质学，环境监测，土地利用，城市规划，交通安全等等，并日益受到各国政府和产业部门的重视。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。