Ключевые слова: atom, caution, conservation, danger, dangerous, eco, ecological, ecology, electric, electrical, electricity, electronics, energy, environment, environmental, factory, generation, hazard, hazardous, icon, illustration, industrial, industry, notice, nuclear, orbits, power, powerplant, precaution, recyclable, risk, safety, science, security, sign, symbol, toxic, voltage, volts, warning,