butadiene extraction二烯: diene抽出: draw out; select from a lot; ...丁二烯抽提: butadiene extraction丁二烯抽提过程: butadiene extraction process异戊二烯抽提过程: isoprene extraction process; isopreneextractionprocess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:二烯抽出,即可在微信中查询翻译