... switched access 转换接入，交换访问 switched digital video (SDV) 交换数字视频 switched line 交换线 ...
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这个术语与通信文献中常见的主站或直拨交换线(DEL)是同义的。
This term is synonymous with the term main station or Direct Exchange Line (DEL) which are commonly used in telecommunication documents.
这个指标不用于度量数字交换机的百分比、数字汇接交换线数百分比及数字网络终端点百分比。
This indicator does not measure the percentage of exchanges which are digital, the percentage of inter-exchange lines which are digital or the percentage of digital network termination points.
在交换系统中，同一或不同交换网络的引入线和引出线之间的连接部分或电路。
Within a switching system, a connection or circuit between inlets and outlets of the same or different switching networks.
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