heavy hydrogen

例句：

1. 1. Heavy hydrogen is a key component in the production of nuclear energy.
   重氢是生产核能的关键成分。
2. 2. The study of heavy hydrogen has important implications for our understanding of the universe.
   研究重氢对我们理解宇宙具有重要意义。
3. 3. The researchers found that heavy hydrogen could be used to create new materials with unique properties.
   研究人员发现，重氢可以用来创造具有独特性质的新材料。