Ключевые слова: aerial photography, architecture, bashang, building structure, buildings, chengde, city, cityscape, cloud, forest farm, grassland, hebei, high viewing angle, industry, lake surface, low, low cloud, mountain, natural beauty, nature, outdoor, paozi, plain, pond, puddle, residential, sky, small town, sunset, terrain, town, unmanned, water surface, wind power, windmill,