Ключевые слова: activity, agricultural, building, bulldozer, caterpillar, construction, contruction, development, digging, dirt, dirty, dozer, earth, engine, engineering, equipment, excavation, gravel, heap, heavy, hydraulic, industrial, industry, iron, isolated, land, large, loading, machine, machinery, metal, mining, mover, mud, outdoor, platform, power, road, rusty, scoop, scraper, site, tool, track, transportation, truck, vehicle, wheel, working, yellow,