放射性同位素

There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.

这里有37讲，主要是地质年代学、射素地球化学和稳定素地球化学。

Tritium is one of the mildest radioactive isotopes.

氚是辐射最和缓的射素一。

A series of tracer experiments using P32 as a tagger and the radioautography had been carried out.

P32射素进行示踪试验和鱼体射自显影,证实白鲫鱼种可以摄食和消化利水绵。