Ключевые слова: abstract, activity, apartment, architecture, blue, building, built, business, city, civil, concrete, construction, crane, design, development, engineering, equipment, frame, gray, heavy, high, house, housing, industrial, industry, machinery, modern, new, operator, outdoors, overhead, picking, plan, reinforcement, residential, rest, scaffolding, shine, site, sky, skyscraper, steel, structure, tall, technology, tower, up, urban, vertical, worker,