fertile isotope

例句：

1. 1. The study of fertile isotope ratios in soil is crucial for understanding the origin and evolution of life on Earth.
   研究土壤中富饶同位素比值对于理解地球上生命的起源和演变至关重要。
2. 2.The discovery of new fertile isotope ratios in ancient pottery has shed light on the history of human civilization.
   在古代陶器中发现新的富饶同位素比值揭示了人类文明的历史。
3. 3.The research team focused on studying the isotopic composition of water molecules in order to understand their impact on ecosystems.
   研究团队专注于研究水分子的同位素组成，以了解它们对生态系统的影响。