Ключевые слова: blue, business, by, category, chemical, chemistry, chimney, color, construction, dark, distillery, energy, engineer, engineering, environment, equipment, factory, fuel, gas, gasoline, global, heavy, images, industrial, industry, light, manufacturing, metal, nobody, oil, petrochemical, petroleum, pipe, pipeline, plant, pollution, power, production, refinery, sky, station, steel, storage, structure, sunset, supply, tank, technology, tower, toxic, tube, view,