isotopic peak

例句：

1. 1. The isotopic peak in the spectrum indicates a high concentration of the element.
   光谱中的同位素峰值表明该元素浓度很高。
2. 2. The study of isotopes has led to important discoveries in fields such as medicine and physics.
   同位素研究在医学和物理学等领域取得了重要发现。
3. 3. The isotopic peak in the sample was due to the presence of a rare isotope.
   样品中的同位素峰值是由于存在一种稀有同位素所致。