dialkylene

例句：

1. 1.The molecule of dialkylene isa key to understanding the properties of polymers.
   二烯基分子是理解聚合物性质的关键。
2. 2. The discovery of dialkylene ledto significant advancements in materials science.
   发现二烯基导致了材料科学的重大进步。
3. 3. Dialkylides are used as precursorsfor the synthesis of many important chemicals.
   二烯基作为许多重要化学品合成的前体。