High - speed Digital Subscriber Loop?
高速数字用户环路HDSL ？
High - bit - rate Digital Subscriber Loop?
高比特律数字用户环路HDSL ？
At present domestic market demand for subscriber loop test is increasing quickly.
目前国内用户环路测试的市场需求正在迅速增加。
The article presents the concept, structure and interface evolution of the subscriber loop access network.
介绍了用户环路接入网的概念、结构及接口的演变等。
The article presents the concept, structure and interface evolution of the subscriber loop access network.
介绍了用户环路接入网的概念、结构及接口的演变等。
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