Ключевые слова: activity, agriculture, beauty, challenges, clearing, cold, conditions, construction, drift, driving, earthwork, efficiency, engineering, environment, equipment, hard, heavy, icy, industry, laboratory, landscape, machinery, maintenance, mechanized, motorized, mountain, nature, operational, operations, outdoor, plow, power, removal, road, rural, safety, season, seasonal, service, snow, sports, sunlight, terrain, transport, vehicle, weather, winter, work,