Ключевые слова: advisory, alert, alloy, aluminum, atom, atomic, bomb, button, caution, circle, computer, contaminated, contamination, danger, dangerous, design, electrical, electronic, energy, equipment, grate, hazard, icon, industrial, japan, metal, nuclear, orange, polished, push, radiation, radioactive, radioactivity, risk, round, shiny, sign, silver, stainless, steel, strong, surface, switch, symbol, technical, technology, textured, toxic, warning, waste, yellow,