?用户线
用户线
数字用户线路 ; 线路 ; 数字用户线
对称性数位用户回路
非对称数字用户环路
Meantime, local phone companies are starting to sell high-speed Internet access through digital subscriber lines.
FORBES: All Over the Map
The Internet phone company said the increase was driven by growth in subscriber lines.
FORBES: Vonage Faces New Peril
That is faster than many digital subscriber lines' Internet service today, yet glacial next to the fiber-optic service now available to many consumers.
WSJ: Higher-Speed Wi-Fi? Not So Fast
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。