butylidene ethylene

例句：

1. 1.This material is used in the production of butylidene ethylene.
   这种材料用于丁二烯的生产。
2. 2. Butylidene ethylene is a type of polymer that is widely used in the plastics industry.
   丁二烯是一种广泛用于塑料工业的聚合物类型。
3. 3. The chemical reaction between butylidene ethylene and oxygen produces carbon dioxide and water.
   丁二烯和氧气之间的化学反应产生二氧化碳和水。