Ключевые слова: amp, background, black, blue, break, bright, brown, cable, color, colored, colorful, concept, conductor, connect, connection, copper, cord, cut, design, education, electric, electrical, electrician, electricity, electronic, energy, equipment, green, illustration, industrial, industry, insulation, isolated, line, macro, network, object, orange, plastic, power, red, short, supply, technology, voltage, white, wire, wiring, wood, yellow,