释义

• abbr.
  det forend dampskibssclskab <丹麦>联合轮船公司; Det Forenede Dampskibs-Selskab(Danish—United Steamship Company)—famous for its ferries （丹麦语）联合轮船公司; data flow description 数据流程描述; digital frequency divider scan 数字分频扫描电路