Ключевые слова: background, balance, beam, beautiful, china, circulation, clouds, color, crank, earths crust, effect, energy, environment, equipment, evening, exploration, features, geology, hazy, industrial, jidong oilfield, landscape, light, machinery, mining, nature, outdoor, outline, petroleum, pumping unit, quiet, resources, rotation, setting sun, silhouette, slowly, space, speed, strata, traction, underground, vague,