Ключевые слова: background, business, car, chiatura, coal, construction, conveyor, design, earth, environment, equipment, excavation, factory, frame, geology, georgia, gravel, hand, heavy, industrial, industry, large, machine, machinery, manganese, manufacturing, metal, mine, mining, nature, ore, pattern, person, pit, plant, pollution, power, processing, production, quarry, rock, sand, silhouette, sky, sun, technology, texture, track, water,