Methods: The synthesis uses urea as material process includes condensation, opening loop, chloridization and nitrosation reaction.方法以尿素为原料,经缩合, 开环, 氯化,亚硝化而得....
They are determining the serum - protein and cholesterol levels.他们正在测定血清蛋白和胆固醇的浓度.Carrie went out and there he sat, determining to do something.嘉莉出去了,而他还坐在那里, 下定决心要做些事情.In the polymerization systems studied, segmental re...
Rock band Pink Floyd release the mega - selling rock opera The Wall.1979年,摇滚乐队平克·弗洛伊德发行了百万销量的摇滚歌剧“墙”.Red is joined by HEYWOOD, SKEET, FLOYD, JIGGER, ERNIE, SNOOZE.海沃德 、 斯基特 、 弗洛伊德 、 齐格尔 、 厄尼 、 斯诺与瑞德聚到了一起.FLOYD: Was it wo...