радіоактивна речовина
subject matter expert (SME)
interplanetary matter
interstellar matter
matter
meteoric matter
micrometeorite matter
radioactive
radioactive alpha and beta particles
radioactive contamination
radioactive decay rate
radioactive dust
radioactive fallout
radioactive material
radioactive source
radioactive weapon residues
spread radioactive material
deadly radioactive damage area
advisory group on modal issues in the safe transport of radioactive material
cleanup of radioactive areas
radioactive agent
radioactive alert
radioactive area
radioactive ash
radioactive blast
radioactive charge
radioactive cloud
radioactive contaminant
radioactive decay
radioactive deposits
radioactive exposure
radioactive fallout contamination
radioactive ground