The enzyme activity test results showed that aldolase could transform Nacetyl - D - ManNAc into N - acetyl - D - neuraminic acid very efficiently. 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.
请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。Return the enclosed Donation Form today in the prepaid envelope provided.请用随信附上的信封将填好的调查表寄回。Use the enclosed envelope to return your completed survey.请附上汇款，支票收款人为泰晤士河谷科技公司。Please enclose your...
The Estonian parliament has passed a resolution declaring the republic fully independent.爱沙尼亚议会已经通过了宣布共和国完全独立的决议。In July of that year an Estonian army, under General Yudenitch, almost got to Petersburg.同年7月,尤得尼奇率领的一支爱沙尼亚...
Manufacturers are working on a new generation of cheaper digital radios.制造商正在研制价格更便宜的新一代数字收音机。Clock-radios blast away until you get up.收音机闹钟会一直响到你起床为止。Radios are not permitted in the library.图书馆内不许使用收音机。...