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)的共聚物組成的合成纖維。......（本文共 161 字） [閱讀本文] >>
海量資源，盡在掌握
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)的共聚物組成的合成纖維。......（本文共 161 字） [閱讀本文] >>
開通會員，享受整站包年服務(wù)