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...
Their flute - like warbling became happy and unrestrained.从中传出的笛儿般又细又亮的叫声,也就格外轻松自在了.Talk was unrestrained in the motels and bars.在汽车游客旅馆或是酒吧间里,人们谈起话来毫无顾忌.His campaign has been unrestrained and often vulgar.他的竞选活动恣意而为而且往往...
当然，并不是所有的酗酒者和吸毒者都会生育出不正常的后代。Of course, not all alcoholics and drug abusers produce deviant offspring.这个想法中有某种不正常的、令人痴迷的东西。There's something morbidly fascinating about the thought.血糖值不正常abnormal levels of sugar in th...