Ключевые слова: accident, alarm, alert, assistance, attention, authority, automation, badge, button, caution, connection, control, crisis, danger, device, electric, electronic, emergency, engineer, factory, help, horizontal, industrial, key, machinery, manufacturing, mechanical, off, panel, panic, power, press, problem, protection, push, safety, security, security system, service, steel, stop, stop sign, switch, technical, technology, tool, urgency, warning, work,