Ключевые слова: blue, business, chemical, chemistry, chimney, construction, dark, diesel, distillery, ecology, economy, energy, engineering, environment, environmental, equipment, factory, fuel, gas, gasoline, global, industrial, industry, manufacture, manufacturing, metal, night, oil, petrochemical, petrol, petroleum, pipe, pipeline, plant, pollution, power, production, refinery, sky, smoke, smokestack, stack, steam, steel, structure, supply, technology, tower, tube, warming,