Ключевые слова: ascend, background, beam, black, china, closeup, clouds, column mounted, components, drilling rig, economy, electric power, energy, environment, equipment, exploration, extraction, fuel, gas, heavy, industry, isolation, labor, liquid, machines, metal, mining, oil fields, oil pumping unit, outdoor, power, process, raw, red, rotation, silhouette, steel, store, swing, technology, workers,