Diacetone acrylamide ( DAAm ) was prepared by reacting acrylonitrile with diacetone alcoholammonia.以二丙酮醇和丙烯腈为原料,利用简便、温和的反应条件合成新型乙烯基功能单体-双丙酮丙烯酰胺.Crosslinkable acrylic polymer emulsion was obtained by adding acrylic polyme...
英国现在是全世界唱片公司羡慕的对象。Britain is now the envy of the world's record companies.一本好词典是同学们所羡慕的东西.A good dictionary is the envy of all students.无病无痛,身体健康就是谢利叫人羡慕的地方.Perfect health was Shirley's enviable portion....
Furthermore, AAAS is fair, stable and agile in global resource utilization.此外, 由于AAAS采用了基于PID的 控制算法,保证了系统在资源分配上的平衡性 、 稳定性和灵敏性.Written approval must be obtained adance from the AAAS for any uses not expressly permitted ab...
玩具屋出现在16世纪, 主要是在德国和荷兰.The dollhouse appeared in the 16 th century, primarily in Germany and Holland.也许大家最熟悉的袖珍艺术的形式还是玩具屋吧.But probably the most familiar form of miniaturization is the dollhouse.但玩具屋只作装饰用,而不是玩具.But they w...