Ключевые слова: activity, building, bulldozer, chain, concatenation, concrete, construction, demolish, dig, dirt, earth, earth moving machine, engineering, equipment, excavator, excavator machine, flood, heavy, heavy equipment, high, hydraulic, industrial, industrial equipment, industry, installation, job, land, loader, machine, man, modern, power, rain, road, roof, safety, scoop, shovel, steel, street, structure, tile, transportation, travel, truck, vehicle, village, water, work, worker,