Ключевые слова: atomic, background, board, box, button, buttons, connection, control, electric, electrical, electricity, electronics, element, energy, equipment, green, industrial, industry, installed, isolated, light, machine, metal, new approach, object, old, panel, plastic, power, push, safety, shape, sign, signal, square, stop, stoplight, supply, switch, symbol, system, technology, tool, up, white, work, yellow,