Ключевые слова: aged, alert, area, atomic, atomic energy, attention, background, banner, careful, caution, concept, concrete, concrete wall, corrosion, crack, danger, dangerous, emblem, flag, graphic, india, indian, nuclear, old, paint, plutonium, polonium, radiate, radiation, risk, rough, safety, stone, surface, symbol, taxonomy, texture, toxic, uranium, wall, warning, weathered, yellow, zone,