非对称数字用户线路 asymmetric digital subscriber line ; ADSL

不对称数字用户线路 ADSL ; Asymmetric Digital Subscriber Line ; Rate-Adaptive Asymmetric Digital Subscriber Line

对称数字用户线[路 asymmetric digital subscriber line

非对称数字用户线环路 Asymmetrical Digital Subscriber Loop

非对称式数字用户线路 Asymmetrical Digital subscliber Line

对称高速数字用户线路 SHDSL Symmetric HDSL