Ключевые слова: 3d pictures, background, bright, clean, concept, conceptual, connection, conservation, cord, danger, dangerous, design, efficiency, electric, electrical, electricity, empty, energy, environmental, factory, future, global, icons, idea, illustration, lightening, line, metaphor, minimalistic, modern, object, outlet, plaster wall, plastic, plug, power, protection, save, science, shadow, shiny, simple, socket, solution, supply, symbol, technology, wall, white, wires,