Ключевые слова: 2, abm, accident, antenna, arc, architecture, astronomy, background, cellular, chernobyl, connection, construction, disaster, duga, equipment, field, frequency, giant, global, information, internet, mast, military, nuclear, power, powerful, radar, radio, radioactive, research, satellite, science, signal, soviet, space, station, system, technology, telescope, television, transmission, war, wireless,