radioactive source term

例句：

1. 1.The study of radioactive sources is crucial for understanding the origins of life on Earth.
   研究放射性源对于理解地球上生命的起源至关重要。
2. 2.In this field, radioactive source terminology plays a vital role in communication and collaboration between scientists.
   在这个领域，放射性源术语在科学家之间的沟通和协作中发挥着重要作用。
3. 3.The development of new radioactive source terminology has allowed us to better understand and manage the risks associated with nuclear energy.
   新放射性源术语的发展使我们能够更好地理解和管理与核能相关的风险。