Ключевые слова: above, architecture, beam, box, building, cable, ceiling, circuit, circulation, colorful, conduit, connection, construction, design, distribution, duct, electric, electrical, electricity, energy, equipment, factory, industrial, industry, installation, interior, junction, lighting, line, metal, metallic, modern, network, office, pipe, pipeline, power, service, silver, site, steel, structure, supply, system, technology, tube, warehouse, wire, wiring,