经纯化后催化活性实验结果表明,醛缩酶可将N- 乙酰 -D- 甘露糖胺高效率地转化为N - 乙酰-D-神经氨酸,表现出较高的催化活性. The enzyme activity test results showed that aldolase could transform Nacetyl - D - ManNAc into N - acetyl - D - neuraminic acid very efficiently.
Granite as raw material, PSA is made in a series of aggregate reactions of chemical fusibility.选用花岗闪长岩为原料, 通过一系列的化学熔融聚合反应制成新型絮凝剂———聚硅酸铁铝盐絮凝剂.Newcastle went out of the competition, losing 2-1 on aggregate.纽卡斯尔队以1比2的总比分被淘汰...
As soon as I know I'm in the team it's like I'm walking on air.一得知我加入了这个队，我高兴得像飞上了天。The show includes canvases by masters like Carpaccio, Canaletto and Guardi.画展上有卡尔帕乔、卡纳莱托和瓜尔迪等大师们的油画作品。The book read like ...
Occasionally a patient is so debilitated that he must be fed intravenously.偶尔会有病人过于虚弱，必须通过静脉注射进食。Stewart took over yesterday when Russell was debilitated by a stomach virus.昨天拉塞尔因肠胃病毒感染身体不适，由斯图尔特暂时接手。This is especially i...