dial backup
基本解释
- 拨号备份
英汉例句
- The Sequencing or Line Replenishment Operator shall provide a phone extension to be used for dial backup of the primary data communications link.
排序或线路补给操作员应提供一个电话分机，以便联系主要数据通讯联接的后援。
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双语例句
词组短语
- dial backup auto answer unit 拨号备援自动回答装置
- asynchronous dial -up backup 异步拨号备份