用户: user; subscriber; consumer; ...线路: circuit; line用户专用线: subscriber line; subscriber's line高位速率数字用户专用线: highbitrate digital subscriber linene; high－bit－rate digital subscriber line用户线路: customer line; foreign exchange line; user line用户到用户线路: user-to-user circuit用户线路，用户环路: su criber line， su criber loop数位用户线路: isdn数字用户线路: digital line; digital subscriber line; dsl; isdn用户线路模块: slm subscriber line module用户线路设备: subscribers line equipment用户线路设施: station line facility用户线路终端: slt subscriber line terminal用户专用集成电路: csic customer specific integrated circuit; usic user specific ic用户专用计次表: subscriber private meter用户专用交换机: pabx用户专用电路，互斥用户电路: exclusive-user circuit单线数字用户线路: single line digital subscriber line sdsl对称数字用户线路: sdsl symmetric digital subscriber line; symmetric digital subscriber line高速数字用户线路: hdsl high- eed digital su criber line; hdsl high-speed digital subscriber line光纤用户线路终端: fslt fiber optic subscriber line terminal全部数字用户线路: xdsl数字用户线路系统: digital line system数字用户线路终端: digital line termination线路扫描，用户线扫描: line scan
