Ключевые слова: architecture, barrier, blue, cable, call, charge, communication, connection, danger, electric, electrical, electricity, energy, engineering, environment, exterior, factory, fence, gray, grid, guard, high, industrial, industry, iron, line, lines, metal, network, phone, pole, post, power, property, section, secure, security, service, sharp, sky, square, steel, strong, structure, supply, technology, telephone, tip, white, wire,