main device 主机 mainframe 主机，大型机｛计｝
网络与数据通信 协议体系与组成结构 释文 end system 端系统 网络与数据通信 协议体系与组成结构 释文 host 主机
- Du Jinfang
- Duji Qu
- Duji Road
- Dujuan Hu
- Du Jun
- Duke Bluebeard's Castle
- Dukedom of Milan
- Duke Ellington
- Duke Fuchai of Wu
- Duke Huan of Qi State
- Duke Moufu of Ji
- Duke of Rongyi
- duke of Saxe-Meiningen
- Duke of Zhao
- Duke of Zhou
- Duke Qi Copper Joint
- Duke Wen of Jin
- Duke Xiang of Song
- Duke Zhuang of Zheng
- Dukhobors
- Du Kuisan
- Dukwi Refugee Camp
- Dulac
- Dulan Xian
- Dulata Kou'an