Azone is synthesized with caprolactam and 1 - bromododecane by phase transfer catalysis, the yield is > 70 %.以己内酰胺、澳代十二烷为原抖,采用相转移催化法合成氮酮, 收率达到70%以上.A wide | bore capillary was employed to determine caprolactam content.利用...
Ying Tai told Shan Bo that she had no choice but to obey her parents.英台告诉山伯,她除了听命于父母外别无选择.Chu Kuei - ying stared dazedly at her mother for a moment , but said nothing.朱桂英怔怔地望着她母亲, 不作声.Mud paintings and beans do color pla...