Ключевые слова: big, bucket, carbon, change, chars, coal, construction, conveyer, crane, demolition, development, digger, dust, earthmovers, energy, excavation, excavator, exploitation, fuel, fume, giant, gigantic, ground, hardware, heap, heavy, hydraulic, industry, large, loader, machine, metal, mine, mining, move, open, over, power, sand, scoops, sky, steel, transportation, utility, vehicle, wheel, work,