Ключевые слова: above, aerial, business, chemical, chemistry, chimney, city, construction, down, downtown, drone, energy, engineering, environment, equipment, factory, fly, fuel, gas, hk, hong, hongkong, industrial, industry, kong, metal, oil, outdoor, over, petrochemical, petroleum, pipe, pipeline, plant, power, refinery, revolution, sky, station, steel, structure, tai po, technology, top, top down, tower, tube, urban, view, white,