Ключевые слова: black, blue, business, cable, city, communication, communications, concept, connect, connection, construction, cord, data, digital, electric, electrical, electricity, electronic, engineering, equipment, fiber, fibre, high, industrial, industry, internet, line, lines, messy, network, optic, optical, phone, pole, post, pylon, sky, supply, switch, tangle, tangled, technology, telephone, transmission, unsafe, urban, voltage, web, wire, wires,