Ключевые слова: bucket, building, bulldozer, certifications, civil, clear, commercial, construction, construction site, demolition, dozers, earth, engine, engineering, equipment, excavator, heavy, home building, hydraulic, industrial, industry, job done, landfill, landscape, large, large boulders, leveling, machine, machinery, motor, mover, occupation, operator, power, road, roadworks, safety, sand, service, site, sky, soil, stones, technical, technology, track, vehicle, wheel, work, yellow,