1) Оптика: high-bit-rate digital subscriber loop
2) Сокращение: High Bit-Rate Digital Subscriber Line, High-bit-rate Digital Subscriber Line (1.5 Mbps high speed Internet access on telephone wires), High-bit-rate Digital Subscriber Line
4) Вычислительная техника: High bit rate Digital Subscriber Line, High-level Data Specification Language, High-level Digital Subscriber Line, High data / bit rate Digital Subscriber Line (BELLCORE, AT&T, DSL, BIT)
5) Сетевые технологии: High-data-rate Digital Subscriber Line
6) Расширение файла: High-Bit-Rate DSL, High-Data-Rate DSL
Универсальный англо-русский словарь. Академик.ру. 2011.