Ключевые слова: airport, alarm, alert, assistance, attention, background, business, button, cancel, caution, city, control, danger, emergency, emergency stop, empty, escalator, help, horizontal, icon, industry, interior, key, machine, modern, moving, object, off, panic, perspective, point, press, push, red, safety, security, sign, stop, support, suspend, switch, symbol, technology, transport, transportation, travel, travelator, urban, view, warning,