Ключевые слова: automatic, black, board, circuit, concept, consumption, counter, current, device, dial, digit, digital, display, electric, electrical, electricity, energy, equipment, fast, gauge, high, house, illustration, in use, instrument, interior, internet, isolated, kilowatt, light, machine, measurement, measuring, meter, motion, number, numeral, panel, power, retro, rotating, running, sign, supply, symbol, system, technology, voltage, watt, white,