period of isometirc relaxation

例句：

1. 1.The study of isotopes has led to important discoveries in atomic physics.
   研究同位素在原子物理学中取得了重要的发现。
2. 2. The team successfully applied the technique to isotope relaxation.
   该团队成功地将这一技术应用于同位素松弛。
3. 3.The research on isotopes is crucial for understanding the behavior of radioactive materials.
   对同位素的研究对于理解放射性材料的行为至关重要。