Ключевые слова: asphalt, asphalting, blacktopping, blue, building, cones, construction, crawlerdrill, demolition, equipment, finisher, grass, green, heavy, highway, industry, landscape, lane, loader, machine, machinery, maintenance, national, park, pavement, paving, pneumatic, pressure, renewal, repair, road, roadwork, screed, site, sky, steam, street, technology, tracked, transportation, truck, vehicles, volvo, work, wyoming, yellowstone,