Ключевые слова: air, architecture, area, background, banner, building, business, chimney, city, color, composition, concept, construction, design, ecology, energy, engineer, environment, equipment, factory, graphic, idea, illustration, image, industrial, landscape, line, manufactory, modern, outline, pipe, plant, pollution, produce, production, quality, red, silhouette, smoke, station, style, technology, thin, tower, town, tree, unusual, urban, white,