Ключевые слова: abstract, air, aluminium, architecture, background, blower, blue, building, burn, cement, channel, color, concept, construction, contrast, cooling, copy, dirty, distribution, duct, fire, green, heat, industrial, industry, iron, metal, metallic, modern, old, outside, pattern, pipeline, plate, red, rusty, smoke, space, steel, structure, system, technology, text, tube, tunnel, ventilation, wall, warehouse, white, wire,