地理地图专业名词英语翻译求地理大神翻译把这几段话翻译成英语1:500数字测绘产品是按1/500的比例尺来表示地物、地貌平

1:500 digital surveying and mapping products according to 1/500 scale to represent the orthographic projection of vector data objects, geomorphic plane location and elevation of the set. Its content is according to the supplementary provisions of existing national standards and local to that.
Aerial image map is the aerial photograph was scanned as the number of data, in the high-tech digital correction, digital mosaic and digital image data processing, making aerial image required by the user.
1/2000 digital orthophoto map is obtained based on digital elevation model of the digital image data of tilt and projection difference correction, image mosaic, sheet cutting, cartouche processes after treatment.