Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.In 2002, we develop Photo - catalyst & electronic Ionizer A...
I see my role as being a catalyst for change.我认为我的角色是促成变革。A catalyst is a substance which speeds up a chemical reaction.催化剂是一种能加速化学反应的物质.It acts as a catalyst in the process of fermentation.它在发酵过程中起触媒的作用....
From the start, doubts surrounded her claim to be the missing heiress.她自称是失踪的女继承人这件事从一开始就存在很多疑点.He adopts his niece as his heiress.他指定他的侄女为继承人.What is an heiress doing with a CPA?艾蕾歌和个注册会计师在一起干 什么 ?...
Of course, not all alcoholics and drug abusers produce deviant offspring.当然，并不是所有的酗酒者和吸毒者都会生育出不正常的后代。Miss Venezuela Claudio - Moreno was first runner - up , Spain is the third Miss Helen - abusers .委内瑞拉小姐克劳迪奥-莫雷诺获 亚军, 第三...
Non - modulating valves are also controlled and monitored by the control system.非 调节阀,也控制和监察控制系统.We study numerically the effect of signal modulating noise in bistable stochastic dynamical systems.用数值方法研究了双稳随机动力系统的信号调制噪声...
鸡蛋过敏的病人应避免用鸡蛋培育的疫苗.Egg - grown vaccines should be avoided in egg - sensitive patients.那些人负责禽肉 、 食用鸡蛋 、 孵用鸡蛋的生产.Those persons are responsible for production of poultry meat , table eggs, hatching eggs.约翰: 用鸡蛋做的煎蛋卷.John: A...