Ключевые слова: above, aerial, building, chemical, down, drone, dusk, energy, engineering, environment, evening, factory, fly, fuel, gas, gasoline, hong, hong kong, industrial, industry, kong, manufacturing, metal, oil, over, petrochemical, petroleum, pipe, plant, pollution, power, production, ray, refinery, station, steel, sunlight, sunset, tai po, technology, top, top down, tower, tube, view,