Ключевые слова: 220, 220v, alternating, appliance, backgrounds, black, building, cable, closeup, colors, communications, computers, concepts, connection, current, design, electric, electrical, electricity, electronics, energy, equipment, europe, family, fuel, generation, ideas, image, internet, line, macro, new, objects, people, pin, plastic, plug, power, single, supply, technology, volts, white,