Ключевые слова: automobile, blue, boil, boiler, chemical, chemistry, chimney, construction, energy, engineer, engineering, environment, factory, fuel, gas, gasoline, heavy, hot, industrial, industry, landscape, light, manufacturing, metal, night, oil, petrochemical, petroleum, pipe, pipeline, plant, pollutant, pollute, pollution, power, power plant, production, refine, refinement, refinery, sky, smoke, steam, structure, tank, technology, tower, water, worker,