Ключевые слова: activity, angle, blue, building, business, cabin, caterpillar, clear, cloud, cloudscape, construction, development, digging, dirt, earth, equipment, excavation, excavator, heap, heavy, hill, hydraulics, industrial, industry, large, low, machine, machinery, metal, mover, mud, nobody, object, objectsequipment, platform, quarry, sand, scoop, site, sky, track, view, working, yellow,