目录: catalogue; contents; list用户: user; subscriber; consumer; ...代理: act for程序: procedure目录用户代理: dua directories user agent; dua directory user agent用户代理（程序）: ua user agent用户代理目录: directory user agent客户代理程序: client agent program目录系统代理程序: directory system agent; dsa用户代理: a se agent; agent, user; edi-ua edi user agent edi; ua user agent; user agent (ua)用户代理层: ual user agent layer目录客户代理: dca directory client agent; directory client agent，dua转录用户目录: duplicate user catalog用户代理实体: uae user agent entity用户代理子层: ual user agent sublayer邮件用户代理: mail-user agent远程用户代理: rua remote user agent人际传信用户代理: ipm-ua inter-personal messeging user agent用户代理服务器: uas用户代理默认风格: user agent default styles用户代理设置文件: user agent profile代理人、代理程序: agent代理程序: agent目录处理程序: directory handling program; directory-handling program; directory-handling routine目录管理程序: contents supervisor; directory maintenance; directory manager
