N-phenylaniline英美网络 N-苯基苯胺化学双语例句The synthesis and characterization of copolymer of aniline and n-phenylaniline Characterization of Maleic Anhydride-Dicyclopentadiene Copolymer苯胺与二苯胺共聚物的合成与表征马来酸酐&双环戊二烯交替共聚物的表征