Ключевые слова: appliance, background, black, button, circuit, closeup, component, contact, control, device, electric, electrical, electricity, electronic, electronics, energy, equipment, flick, hardware, industrial, machine, metal, metal nut, metallic, military, nut, off, part, plastic, power, push, scratched, shutdown, signal, soviet, start, stop, switch, technical, technology, toggle, tumbler, up, white,