用户: user; subscriber; consumer; ...单元: unit; unit element; cell; lo ...单用户单元: single subscriber unit su; ssu single subscriber unit多用户单元: msu multiple subscriber unit; msu:multi-subscriber unit光用户单元: osu optical subscriber unit固定用户单元: fsu fixed subscriber unit远程用户单元: rsu remote subscriber unit远端用户单元: i emote inteface nit; irsu isdn remote subscriber unit isdn; remote subscriber line unit rsu; riu remote interface unit; rms remote interface unit; rsu:remote subscriber unit独立远端用户单元: stand alone remote line unit数字远端用户单元: digital remote subscriber unit无线本地环路用户单元: wsu wll subscriber unit主叫用户单方: calling subscriber release单用户单任务操作系统: single-user single task主叫用户单方话终拆线: calling party release用户服务单元: csu customer service unit用户接口单元: user interface elements用户数据单元: subscriber data unit用户业务单元: customer service unit模拟用户线单元: alu:analogue lines unit网络用户产品单元: nubu用户特定服务单元: usse user specific service elements用户线连接单元: subscriber line connection unit用户应用服务单元: uase user application service element远端用户线单元: rlu remote line unit远距离用户线单元: remote subscriber line units