Ключевые слова: activity, asphalt, background, blade, bucket, building, bulldozer, construction, dirt, earth, engineering, equipment, excavation, excavator, grader, ground, heavy, hydraulic, industrial, industry, land, large, motor, mover, moving, outdoors, power, road, sand, scoop, shovel, site, soil, steel, track, tractor, truck, vehicle, wheel, work, worker, yellow,