radiothorium

1. Radiothorium contamination tendency and control measure for Baotou Steel Factory tailing dam
   包钢尾矿坝周围土壤放射性钍污染趋势及其防治措施研究
2. Other radioactive elements have been discovered since: actinium, radiothorium and mesothorium, ionium, etc.
   自那以后发现的其他放射性元素有：锄、放射性钍和新针、镍，等等。
3. Protective effect of chelating agents of catechols amino carboxylic acid on radiation injury induced by radiothorium in mice: prompt administration
   邻苯二酚氨羧酸螯合剂对钍内污染早期给药效果

noun

1. radioactive isotope of thorium with mass number 228

   Synonym:    thorium-228