Are regarded as high - level waste . the hlw contains highly - radioactive fission products and radionuclides with long - lived radioactivity ，属于高放射性废物，包含具高度辐射性的裂变产物和有长衰变期的放射性核素。
Are regarded as high - level waste ( hlw ) . the hlw contains highly - radioactive fission products and radionuclides with long - lived radioactivity ，属于高放射性废物，包含具高度辐射性的裂变产物和有长衰变期的放射性核素。
When the distribution of important fission products is calculated , emphasis is placed on the noble gas radionuclides and upon radioisotope of iodine because of their great contribution to accident dose 在对重要裂变产物分布的仿真计算中，重点放在了惰性气体核素和碘的放射性同位素上，因为它们是事故中放射性剂量的重要来源。
