以下为句子列表：
英文: In this paper, the centenary changes of the area in the Four-lake Area were studied by interpreting on the water resources map, relief map and images of remote sensing supported by GIS.
中文: 在野外调查和历史文献分析的基础上，利用不同时期的水利图、地形图、遥感影像图作为基本信息源，在GIS技术支持下，提取湖泊面积信息，对四湖地区近百年湖泊水域变化进行了研究。
更详细...
英文: Then, by studying Fuyu County as a case, using 1:50000 relief map as assistant data, building up classification system of residential points, and using ETM images to distill information of residential area, the inversion model of population distribution w
中文: 进而以扶余县为例，以1:5万地形图为辅助数据，建立居民点分类体系，利用ETM影像提取居民点信息，在以上模型的基础上建立人口分布的反演模型，得到基于居民点的人口分布矢量数据。
更详细...
英文: This paper introduces some methods for setting up the place-name database and the drawings information database and the management modes of digitized relief map through using the CASS5.1 software,and advances some matters that should pay attention to duri
中文: 介绍了利用CASS5.1绘图软件建立地名信息库与图纸信息库的方法及数字地形图的管理方式,指出了使用过程中应注意的事项。
更详细...
英文: Today, enough soundings are available to enable a relief map of the Atlantic to be drawn and we know something of the great variety of the sea bed's topography.
中文: 现在已有足够的水深测量数据来绘制一张大西洋洋底地形图，而且我对海底地形的千变万化也有了一定的了解。
更详细...
|
