1. The scientists were able to rehalogenize the compound by introducing chlorine atoms back into the molecule.
科学家们通过在分子中重新引入氯原子，成功地重新卤素化了这个化合物。

2. This process involves heating the substance to high temperatures in order to rehalogenize the compound.
这个过程需要将物质加热到高温，以重新卤素化化合物。