- Some cancers are treated by radiation therapy.
有些癌症可用放射疗法治疗。
- And that's without radiation and chemotherapy.
其中没有任何的放射和化学治疗。
- Thus the absorption of a system is the fraction of the incident radiation which is absorbed by the system.
因而一个系统的吸收率就是被系统吸收的入射辐射的份额。
