Be aware that you cannot perform a backup on a database that has an existing connection with its client application.

请注意，您无法对正在连接其客户端应用程序的数据库执行备份。

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A fairly complex component could use its own library to store contents, define custom roles that are used to tailor its functionality, and participate in backup and restore operations.

更复杂的组件可以使用它自己的库来存储内容、定义定制角色(用来定制功能)并执行备份和恢复操作。

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He wants to copy its contents onto a separate backup drive.

他想把电脑中的部分内容拷贝到单独的一个备份盘上。

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The company now offers its satellite phone service as a transparent backup to cellular coverage through its partnerships with cellular providers.

FORBES: Magazine Article

Spurred by the 2007 raid, Knollwood solved its backup problem by cutting a new manhole and clearing a buildup of lime, grease and sludge.

WSJ: Federal Offenses: Sewage Blunder Earns Building Engineer a Criminal Record

Sure it looks great, and most reviewers are saying its home networking and backup capabilities are a step up from Vista.

FORBES: Magazine Article