在任何恢复模式下，您都可以在数据库在线时还原处于离线状态的文件。
Under any recovery model, you can restore a file that is offline while the database is online.
通过反演方法可以得到浸润线的时空模式，并进而判断浸润线状态，为采取安全措施提供理论依据。
The pattern that will help to judge the state of seepage line and provide theoretical criterion for taking safety measures, can be obtained by back analysis.
手动的热备份相当于备份一个离线状态的处于备份模式的表空间。
A (manual) hot backup is equivalent to backing up a tablespace that is in offline backup mode.
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