APP A synthetic fiberthat consists of a copolymer of 1-cya-noethene (acrylonitrile,vinyl cyanide) andethenyl ethanoate (vinyl acetate). 由1-腈基乙烯(丙烯腈,乙烯基腈)和乙烯基乙基酯(乙烯基乙酸酯)的共聚物组成的合成纤维。......（本文共 161 字） [阅读本文] >>
海量资源，尽在掌握
A synthetic fiberthat consists of a copolymer of 1-cya-noethene (acrylonitrile,vinyl cyanide) andethenyl ethanoate (vinyl acetate). 由1-腈基乙烯(丙烯腈,乙烯基腈)和乙烯基乙基酯(乙烯基乙酸酯)的共聚物组成的合成纤维。......（本文共 161 字） [阅读本文] >>
