intramolecular transformation

例句：

1. 1.The intramolecular transformation of the protein is crucial for its function.
   蛋白质的分子内转化对其功能至关重要。
2. 2. During the reaction, the molecules undergo intramolecular transformations.
   在反应过程中，分子经历分子内转化。
3. 3.The study of intramolecular transformations has led to new insights into molecular behavior.
   对分子内转化的研究已经揭示了分子行为的新见解。