Ключевые слова: black, carrier, coal, construction, crawler, dig, digger, digging, energy, environment, equipment, excavation, excavator, exploitation, factory, field, fossil, geology, ground, heat, huge, industrial, industry, large, loader, loading, machine, mine, mineral, mining, mober, moving, open, ore, pile, pit, power, production, quarry, raw, rock, scraper, shipping, shovel, stockpile, stone, trasportation,