[] a tall chimney that takes smoke away from factories.（工厂的）大烟筒，大烟囱ⓘ Smokestack is often used to describe industries that produce a lot of pollution by burning coalsmokestack 常用于描述因烧煤而产生大量污染的工业◆efforts to shed manufacturing's smokestack image为摆脱制造业的污染大户形象而作的努力◆Many countries are moving away from traditional smokestack industries.许多国家都在放弃传统的重污染工业。