Ключевые слова: activity, architecture, background, big, business, cargo, city, commercial, construction, crane, cranes, design, development, engineering, equipment, estate, heavy, high, industrial, industry, isolated, large, lift, lifting, machine, metal, modern, new, one, operator, orange, project, red, sky, skyscraper, steel, structure, tall, technology, tower, urban, white, work, yellow,