They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions. 它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应.
他的父母设法打消他对音乐的兴趣，但他始终坚持。His parents tried to discourage his interest in music, but he persisted.病人常常不能那么容易就打消掉消极的情绪。Often a patient cannot snap out of their negativity that easily.最终理智占了上风，他打消了那个念头。Logic had prevailed and...
今天的时髦话往往变成明天的陈词滥调.The fashionable remarks of today often become the commonplace expressions of tomorrow.今天流行的时髦话明天常常成为陈腐之言.The fashionable remarks of today often become the commonplace expression of tomorrow....
OBJECTIVE To establish a method to determine the dissolution of Aciclovir tablet.目的建立阿昔洛韦片的溶出度检查方法.Objective: To determine the toxic effect 0 f aciclovir gel on skin.目的: 观察阿昔洛韦凝胶对动物皮肤的毒性作用.Conclusion: Topical use of acic...
玛丽存了几块布留作棉被用.Mary saved up pieces of cloth to make a quilt.做杂拼花布棉被是利用零碎布料的好办法.A patchwork quilt is a good way of using up scraps of material.实在太暖和, 阳光并非正中的照着,斜斜对正棉被.It was too warm. Sunlight was slanting on to the quilt....