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...
当他走上凉台时, 她转向他, 脸色开朗起来.As he came out on the balcony, she turned to him, her face alight.我把没用的东西放在了凉台的合子里.I put useless things in a box on the balcony.厄胡得出来到了走廊,把凉台上的门关上,上了锁.Then Ehud went covered way , shutting the doors...