Ключевые слова: black, blue, board, box, charge, check, circuit, component, computer, concept, control, device, digit, digital, electrical, electronics, finger, gloves, gold, golden, green, hand, hole, image, industry, led, lighting, metal, mobile, modern, quality, red, regulator, scale, science, silver, socket, soldering, switch, technician, technique, technology, wire, yellow,