polymethylene polyphenylisocyanate聚: assemble; gather; get togeth ...甲: the first of the ten Heavenl ...烯: alkene; olefince化合物: chemical compound; compound多烯化合物: polyenic compounds下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:聚甲烯化合物，即可在微信中查询翻译
