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...
Sometimes the people doing this dance hold brightly colored scarves...有时跳这种舞的人会手拿色彩鲜艳的丝巾。She placed the chocolate-colored coat beside the case.她将深棕色大衣放在手提箱旁。The cormorant is a large, long - necked , dark - colored bird w...
降落伞突然瘪了，他从300英尺的高空跌落到地面。He plunged 300ft to the ground when his parachute collapsed.这种不安情绪使股票价格跌落到几乎18个月以来的最低水平。The upset sent share prices sliding to their lowest level for almost 18 months.猫在跌落时能够大难不死是有事实作为依据的.A cat�...
El Salvador has earned the dubious distinction of having the worst soil erosion in continental America.萨尔瓦多因是美洲大陆土壤侵蚀最严重的地方而有了这份不光彩的名声。Soho was still a highly dubious area.索霍区仍然是个靠不住的地方。My parents were dubious about it a...
两星期后他们放弃了搜救那名失踪的小孩.The searching for the missing child was abandoned after two weeks.度了两星期假后,我的确感到身体非常舒适.I really feel in the pink after a fortnight's holiday.两星期过去,他们的钱用光了.Two weeks passed. They ran out of money....
四分之一 反过来或上升干应用.Quarter - turn or rising stem applications.是从基线到大写顶线或上升笔划线的距离.It is the distance between the base line and the ascender line or cap line....
他把撕碎的画拼起来.He pieced together the torn - up drawings.罪犯把撕碎的纸放进厕所企图冲掉.The criminal put the torn papers in the lavatory and tried to flush them away.裂伤不再增加重殴和撕碎的伤害.Mangle doesn't increase the damage of Maul and Shred a...