Ключевые слова: activity, architecture, backhoe, build, building, buildings, bulldozer, business, cement, city, commercial, concrete, construction, contractor, crane, design, development, engineering, equipment, exterior, home, house, industrial, industry, interior, isolated, lifting, machine, machinery, make, metal, mining, new, place, plant, progress, project, safety, silhouette, site, steel, structure, structures, technology, work, worker, working,