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DSL和Cable Modem技术之间的竞争其实是两种公司之间的竞争，两者在技术上各有千秋。不过，在不同的领域，针对不同的业务重点，两者都可以各自找到相应的发展空间。DSL技术中最具代表性的技术当属ADSL技术，它是一种不对称的数字环路技术，利用现有的铜线对向用户提供高速因特
The competition between DSL and Cable Modem technology is actually a competition between two companies, both technically different. However, in different areas, different business priorities, both can find their own respective development space. DSL technology is the most representative technology ADSL technology, it is an asymmetric digital loop technology, the use of existing copper to provide users with high-speed Internet