常见例句Synthesis of polybutylene adipate by a chain-extending reaction with adipoyl bis-caprolactamate 己二酰双己内酰胺扩链合成聚己二酸丁二醇酯adipoyl biscaprolactamate 己二酰双己内酰胺Adipoyl dichloride 己二酰氯 返回 adipoyl