复数： rollbacks

Unless an administrator intervenes , such processes cause a usn rollback .

除非管理员介入，否则这种过程将会导致usn回滚。

Rollback is called if the installation of any component in the installation project fails .

如果安装项目中任何组件的安装失败，则会调用rollback。

Transaction behavior enables the rollback of transacted operations if a failure occurs .

通过事务行为，可以在失败时回滚已进行事务处理的操作。

In this example , the command is run immediately following the rollback in step5 .

在本例中，该命令是在步骤5的回滚之后随即运行的。

Only exceptions that are thrown and are not handled within the script result in a rollback .

仅当脚本中产生异常并且未在脚本中得到处理时，才会导致回滚。