ethylene-butadiene copolymer乙烯: ethylene; ethene; olefiant g ...二烯: diene二烯-乙烯共聚物: butadiene vinyl copolymer丁二烯-苯乙烯共聚物: bs丁二烯-乙烯共聚物: butadiene vinyl copolymer下载手机词典可随时随地查词查翻译