polyvinyl butyrate聚乙烯: polyethylene; polythene基: base; foundation丁醛: butyraldehyde; butaldehyde; ...聚乙烯丁醛: polyvinyl butyral乙烯基丁醚: vinyl butyl ether; vinyl-n-butyl ether下载手机词典可随时随地查词查翻译
