Ключевые слова: barrel, battery, bolt, bulb, button, cable, charge, charging, coal, connect, connection, contour, cylinder, electric, electrical, electricity, energy, engine, environment, fuel, gas, icon, industry, isolated, lamp, led, light, lightning, line, linear, outlet, outline, plug, power, propane, rosette, service, set, socket, solar, switch, tank, tower, transmission, turbo, vehicle, water,