Ключевые слова: cable, china, color, communication, conductivity, conductor, construction, cool, copper, electric, electrical, electrician, electricity, electronics, energy, equipment, europe, finance, flow, growth, industrial, industry, isolated, manufacture, metal, money, movement, non ferrous metals, power, red, roll, secondary raw materials, sine wave, speed, supply, the economy, transmission, turning, variability, vein, voltage, wire,