基本解释立躰傚應同根派生 英汉例句The Stereoeffect on the Crystallization Behaviors of the Aromatic Polyamide Oligomers and Their Block Copolymers with Aliphatic Polyamide 空間立躰結搆對芳香聚醯胺及其嵌段共聚物結晶行爲的影響