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...
Are you calling or foretelling?你是否在召唤或者预言?Heavy clouds hang low over a dilapidated homestead in the Midwest, foretelling a possible tornado.厚厚的云层低低地悬在中西部残破的宅地上空, 预示可能发生龙卷风....
The fact of the matter is that student finances are stretched.关键是奖学金有限。He had burns that stretched from his neck to his hips.他从脖子到臀部均被烧伤。She stretched her arms out and gave a great yawn.她伸了个懒腰，打了个大哈欠。...
Constance doesn't have a way with words like you do...康斯坦丝没有你这么健谈。And these carried back to Sondra, along with certain embellishments by Constance , had the desired effect.这些后来又传到桑德拉的耳朵里, 加上康斯坦丝添枝加叶,就弄假成真了.'I t...
Cindy lashed her motorboat alongside.辛迪把她的快艇系在旁边。The motorboat put on speed as soon as it left the pier.汽船一离开码头就加快了速度.The motorboat cut across swift currents and skirted dangerous reefs.汽艇穿过激流,绕过险滩....
Lampsy as well, he comes up with so many important goals year after year after year.小兰也是,一年一年又一年, 他总是打入关键进球.And this is something that we are just going to increase year after year , after year.这就是我们年复一年所增加的东西.You keep o...