Ключевые слова: activity, background, backhoe, bucket, bulldozer, construction, contractor, development, dig, digger, dirt, dirty, earth, equipment, excavate, excavating, excavation, excavator, ground, heavy, horizontal, hydraulic, industrial, industry, large, loader, machine, machinery, material, metal, mining, mover, power, road, sand, scoop, shovel, site, soil, steel, technology, track, tracked, tractor, transportation, truck, vehicle, wheel, work,