Ключевые слова: activity, bulldozer, clouds, construction, dirt, earth, efficiency, engineering, environment, equipment, excavation, grading, ground, heavy, industrial, landscape, large, machinery, maintenance, management, mountain, mountains, moving, operation, operator, outdoor, performance, powerful, productivity, road, rocky, rugged, rural, site, sun, sunlight, terrain, tires, transport, use, vehicle, work,