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.They are highly specific for the reactions that they ...
Any unexpected circumstance that arises may catalyze a sudden escalation of violence.任何突如其来的情况都可能造成暴力骤然升级。They are highly specific for the reactions that they catalyze.它们对被它们催化的反应有很强的专一性.Any of a group of enzymes that ca...
Republicans targeted Unsoeld as vulnerable in her bid for reelection this year...共和党人将安索尔德定为攻击目标，认为她在争取今年连任的竞选中不堪一击。Her reelection seemed assured.她重新当选似乎是十拿九稳.The mayor has a political machine working for his reelection....
Where the show really excites is in the display of avant-garde photography.那场展览真正令人激动的就是先锋派摄影的展示。In Paris he made friends among the avant-garde.他在巴黎结交先锋人士。In essence, resistance of avant garde art is just a game.先锋艺术的反抗实...
My house confronts his.我的家与他的家对门.Such a cheek defect confronts the otolaryngologist with the problem of reconstruction.本文提出5个接受广泛切除后再行重建的颊癌病例,并比较各种重建方法的优缺点.Meanwhile , Schaffer confronts Foreman on his patient, who is re...
By xerography a book can be reproduced in a few hours.用复印术,几小时内就能把一本书复印出来.Electrostatic printing is classified into two major groups, Xerography and electrofax.静电印刷分为“干影印”和“电子传像”两个主要方式.A trademark used for a photocopying...