For instance, a Web-based service could choose to provide a means of allowing clients to request the current weather conditions for any given longitude and latitude coordinate on Earth.
例如，基于Web的服务可以提供一种方式，允许客户机请求地球上给定经纬度坐标的位置的当前天气状况。
DEM (Digital elevation Model) is a data set of plane coordinate or longitude, latitude, and elevation of the regular square grid points in some region.
数字高程模型(DEM)是一定区域范围内规则格网点的平面坐标及其高程的数据集或者是经、纬度和海拔高度的数据集。
DEM (Digital elevation Model) is a data set of plane coordinate or longitude, latitude, and elevation of the regular square grid points in some region.
数字高程模型(DEM)是一定区域范围内规则格网点的平面坐标及其高程的数据集或者是经、纬度和海拔高度的数据集。
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