heavy isotope

例句：

1. 1. Heavy isotopes are used in nuclear power plants to generate electricity.
   在核电站中，重同位素用于产生电力。
2. 2.The study of heavy isotopes has led to important discoveries in the field of physics.
   对重同位素的研究在物理学领域取得了重要的发现。
3. 3.The heavy isotopes in the sample were analyzed using a mass spectrometer.
   使用质谱仪分析了样品中的重同位素。