Duoben.杜奥贝河(在利比里亚)duon.成对的表演者；二重奏（唱）pref.表示“二”；“一对”duoplasmatron-type ion engine双等离子管式离子发动机Duodenal tumor of non-ampulla非壶腹部十二指肠肿瘤Duoqingcuo National Wetland Park多庆错国家湿地公园Duofuton Na-rich marie volcanics多福屯钠质基性火山岩Duodenal intubation and aspiration十二指肠插管法和吸引术Duoxi Japanese Style Flavor Noodles多喜日式风味面馆Duodenoscopy through artifical stoma经人工腹壁口十二指肠镜检查Duodenotomy for foreign body removal十二指肠切开异物除去术Duodena postbulbar penetrating ulcer球后壁穿透性溃疡duo-quick cement self hardening sand双快水泥自硬沙