Ключевые слова: abstract, alarm, analog, background, begin, business, button, close, color, control, current, electric, electrical, electricity, electronic, end, energy, equipment, home, house, icon, illustration, image, isolated, light, machine, nobody, object, off, one, plastic, power, push, red, render, sign, single, start, stop, supply, switch, symbol, technology, turn, up, wall, white,