报道以呋喃甲醛和苯乙酮为原料,氢氧化钠为催化剂,采用超声波辐射合成糠叉乙酰苯的方法. With furfural and acetophenone as raw materials - furfurylideneacetophenone was synthesized by NaOH as catalyst under ultrasonic irradiation.
Eventually Sam persuaded her to accept an offer of marriage.最终萨姆说服她接受了求婚。Derek persuaded me of the feasibility of the idea.德里克让我相信这个想法是可行的。Swanson persuaded Hubley to work undercover to capture the killer.斯旺森说服赫布利去做卧底以便将...
这些峰分别相当于乙基和丙基的侧链开裂.These peaks correspond to side - chain cleavage of the ethyl and propyl groups respectively.'聚'.''氨脂一种氨基甲酸中除''.'乙基'.''酯以外的酯.Any of several esters, othe...
The most striking feature of those statistics is the high proportion of suicides.那些统计数据最引人注目之处是其极高的自杀率。She accolades for her directorial feature film debut, The Virgin Suicides.她的导演处女作《处女自杀》获得好评.The most striking feature...
内战阻碍着救援机构对饥荒赈济物资的配给。The civil war is obstructing distribution of famine relief by aid agencies.共和国之间紧张的种族关系可能会引发内战。Ethnic tensions among the republics could lead to civil war.苏丹内战已经持续了9年之久。Civil war in the Sudan has been...
Character: White or light yellow powder, slightly salty, odorless, hygroscopic property.性状: 白色或微黄色粉末, 略带咸味, 无臭, 有饮湿性.a hygroscopic powder吸湿粉The salt lithium chloride is hygroscopic.氯化锂盐具有吸湿性的.Maltitol in dry form is extr...
The Dragon Boat Festival is one of three major Chinese holidays, along with the Spring and Moon Festivals.端午节是三个中国主要节日之一，另两个是春节和中秋节。AT length , the Dragon - boat Festival came and went in an atmosphere of unrest.旧历端阳节终于在...