Ключевые слова: architecture, blue, building, business, chemical, chimney, coal, construction, dark, distillery, dusk, electric, electrical, electricity, energy, engineering, environment, factory, fuel, gas, gasoline, generator, global, industrial, industry, light, metal, night, oil, petrochemical, pipe, plant, pollution, power, power plant, production, refinery, sky, smoke, station, steam, steel, structure, sunset, technology, tower, turbine, twilight, voltage, warming,