Ключевые слова: architecture, background, blue, building, chemical, chemistry, construction, electricity, energy, engineering, environment, equipment, facility, factory, fuel, gas, heavy, industrial, industry, iron, machine, machinery, manufacturing, metal, oil, outdoor, petrochemical, petroleum, pipe, pipeline, plant, pollution, power, process, production, refinery, silver, sky, smoke, station, steel, storage, structure, sunset, supply, technology, tower, tube, workshop,