dial backup

基本解释

• 拨号备份

英汉例句

双语例句

• 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。
  www.1x1y.com.cn

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词组短语

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

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