Warning: file_put_contents(): Only 0 of 5380 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/totle.com.cn/index.php on line 55 dial backup是什么意思，dial backup的翻译，dial backup音标、读音、用法和例句_乐豆毛深蓝词典
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