isoalkene

例句：

1. 1. The production of isoprene is a key step in the chemical industry.
   异戊烯的生产是化工行业的关键步骤。
2. 2. Isoprene is often used as a raw material for producing polyurethane foam.
   异戊烯常被用作生产聚氨酯泡沫的原料。
3. 3.The research on isoprene has significant implications for environmental conservation.
   对异戊烯的研究对环境保护具有重要意义。