... private branch exchange 专用小交换机,专用分机 private branch exchange access line 专用小交换机联结通道 private branch switchboard 专用交换台 ...
基于12个网页-相关网页
专用小交换机联接通道 private branch exchange access line 专用小交换机直通中继线 private branch exchange tie trunk ..
基于1个网页-相关网页
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