terminal double bond

例句：

1. 1. The structure of DNA is made up of a series of terminal double bonds.
   DNA的结构由一系列终端双键组成。
2. 2. The discovery of this new compound has important implications for the understanding of terminal double bonds.
   这种新化合物的发现对理解终端双键具有重要意义。
3. 3. In the study of polymers, understanding the behavior of terminal double bonds is crucial.
   在聚合物研究中，理解终端双键的行为至关重要。