Ключевые слова: background, black, cable, colorful, communication, concept, copper, cutter, electric, electrician, electronics, energy, engineering, explosion, fire, floor, hand, home, industry, internet, jobs, light, line, mechanical, metal, network, outage, pliers, power, professions, red, repairing, service, set, shutdown, supply, table, technology, tool, voltage, wire, work, worker, working,