pentaenes

例句：

1. 1. The pentaenes are a type of organic compound with five carbon atoms.
   五烯是一种具有五个碳原子的有机化合物。
2. 2.Pentaenes are used in the production of lubricants and as solvents.
   五烯用于生产润滑油和作为溶剂。
3. 3.The pentaenes have been found to have anti-inflammatory properties.
   五烯被发现具有抗炎性质。