Ключевые слова: activity, angle, building, bulldozer, civil, close, construction, detail, development, digg, digger, digging, dirt, engineer, engineering, equipment, excavating, excavation, excavator, gravel, heavyduty, highway, industrial, industry, loading, low, machine, machinery, mover, quarry, scoop, soil, structure, tracks, tractor, transport, transportation, up,