Ключевые слова: automatic, automation, background, blue, board, button, cable, circuit, concept, connection, construction, control, copper, current, distribution, electrical, electronic, emergency, energy, engineering, equipment, green, hose, industrial, installation, line, machine, machinery, manufacturing, metal, panel, plastic, power, production, protection, red, rotary, safety, spiral, steel, supply, switch, system, technical, technology, tube, voltage, wire, work, yellow,