Ключевые слова: air, blue, building, business, carbon, chemical, chemistry, chimney, construction, ecology, energy, engineering, environment, environmental, equipment, exposure, factory, fuel, gas, gasoline, global, industrial, industry, long, manufacturing, metal, night, oil, petrochemical, pipe, plant, pollute, pollution, power, production, refinery, reflection, sky, smog, smoke, smokestack, stack, stars, station, steam, steel, structure, technology, tower, tube,