1、Presently, Asymmetric Digital Subscriber Line wideband technique is paid attention to extremely.
目前，非對(duì)稱數(shù)字用戶環(huán)路ADSL寬帶技術(shù)倍受關(guān)注。

2、A Study of High-bit-rate Digital Subscriber Line (HDSL)Technology
高比特率數(shù)字環(huán)路技術(shù)

3、Very-high-speed digital subscriber line is the fastest access technology of the xDSL family.
甚高速數(shù)字用戶線（VDSL）是數(shù)字用戶線（DSL）家族中速率最高的接入方式。