Ключевые слова: activity, background, black, bucket, bulldozer, closeup, construction, digger, dirt, drive, duty, earth, equipment, excavator, ground, heavy, horizontal, hydraulic, industrial, industry, isolated, loader, machine, machinery, mover, object, pattern, plant, power, rubber, sand, semi, shovel, site, spare, texture, tire, tires, track, transport, transportation, tread, truck, vehicle, wheel, work, yellow,