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.
果真如此, 我就放心了.If this is really true, it'll take a load off my mind.他说他将退休, 果真 吗 ?He says he is going to retire; but quaere , is it true?新的管理层果真带动了企业发展.The new management really got the business moving....
He denied that some young people today were degenerating.他否认现在某些青年在堕落.There is a new star rising degenerating stage of health care industry.随着保健品顾客的需求层次逐步提高,消费者的消费行为正日趋个性化、细分化.Early division phase embryos may use metabol...