Ключевые слова: action, activity, architecture, building, bulldozer, chain, concrete, construction, danger, dramatic, earthmover, engineer, equipment, excavator, excavator icon, gear, ground, heavy, house, hydraulic, industrial, industry, large, loader, machine, machinery, man, mega project, metal, mine, pneumatic, power, protective, quarry, road, safety, sand, scoop, shovel, soil, steel, tile, tool, tractor, transportation, vehicle, work, worker, yellow,