ketene造句

例句与造句

1. Depending upon reaction conditions, the product may be a polyketone formed b y addition polymerization of the ketene double bond .
   随着反应条件的不同，产物可以是由烯酮的双键加成聚合得到的聚酮。
2. Alkyl ketene dimer
   烷基烯酮二聚体
3. It's difficult to find ketene in a sentence. 用ketene造句挺难的