Ключевые слова: accident, alarm, alert, background, black, button, cancel, control, danger, disconnect, electrical, emergency, factory, help, icon, industrial, industry, interrupt, machine, macro, mechanical, object, off, panel, panic, plastic, point, power, press, protection, push, red, round, safety, security, sign, start, stop, switch, symbol, system, technology, warning, white, worker, yellow,