Ключевые слова: activity, apartment, architectural, architecture, blue, building, business, cement, city, concrete, construction, crane, development, engineering, equipment, formwork, frame, gray, heavy, high, home, horizontal, house, housing, industry, iron, machinery, metal, modern, new, office, outdoors, plank, reinforcement, residential, rod, scaffolding, scene, site, sky, steel, structure, tall, tower, urban,