Ключевые слова: abstract, background, business, chemical, chemistry, chimney, construction, crude, dark, diesel, distillation, economy, energy, engineer, engineering, environment, equipment, factory, fuel, gas, gasoline, industrial, industry, manufacture, manufacturing, metal, oil, petrochemical, petrol, petroleum, pipe, pipeline, piping, plant, pollution, power, production, pump, refinery, sky, smoke, station, steel, sunset, supply, tank, technology, tower, tube, twilight,