Ключевые слова: a few sets of machines, and the economy, background, beautiful, black, blue, busy, color, construction, drilling, energy, enterprise and energy, equipment, extraction, features, gas, gray, heavy, homework, in the evening, industry, jack, labor, liquid, money, oil, oil fields, pipe, power, process, pump, pumping unit, raw, red, running, silhouette, sky, steel, store, strength, sun, tall, technology, the fuel, towers, wealth, work well,