Ключевые слова: above, aerial, business, chemical, chimney, construction, dark, distillery, down, drone, energy, engineering, environment, evening, factory, fly, fuel, gas, gasoline, industrial, industry, metal, night, oil, petrochemical, petroleum, pipe, plant, pollution, power, production, refinery, smoke, station, steel, sunset, tai po, technology, top, top down, tower, view, work,