Mathematical relationship between Rn daughter concentrations and ventilation, adhesion and deposition, and radioactive decay was developed in the paper.
本文给出了氡子体浓度和通风、附着和沉积、以及放射性衰变之间的关系。
2
The radon and its daughter elements are the decay products of the radioactive elements such as uranium and thorium and the important carcinogenic factor of causing the lung cancer.