Ключевые слова: above, aerial, bird, blue, building, chemical, city, construction, down, drone, energy, engineering, environment, equipment, evening, eye, factory, fly, fuel, gas, heavy, hk, hong, hongkong, industrial, industry, kong, manufacturing, metal, night, oil, over, petrochemical, petroleum, pipe, pipeline, plant, pollution, power, production, refinery, sky, steel, tai po, top, top down, tower, tube, urban, view,