Ключевые слова: accident, attack, biological, burn, catastrophe, caution, chemical, danger, defense, disaster, emergency, emergency situation, equipment, factory, fire, firefighter, fireman, firemen, flame, gas, hazard, hazardous, human, industrial, nuclear, nuclear power plant, people, plant, pollution, protection, protective, radiation, radioactive, rescue, safety, service, smoke, technology, toxic, water, work,