不过，每次用户要求系统刷新（例如，按照结束日期对任务进行排序）时，门户应用程序必须向 WPS 发送新查询，以重新填充任务列表。
However, every time the user asked for a system refresh by sorting her tasks by due date, for example, the portal application had to issue a new query to WPS to repopulate the task list.
当您需要在不重新构建数据的测试或灾难恢复系统上刷新数据时，这种方法很方便。
This can be handy when you want to refresh data on a test or disaster recovery system that doesn't need to be built from scratch.
然后，可以通过网络启动一个系统，然后解开镜像，刷新相关固件。
Then you can boot a system over the network and have it unpack and flash the relevant firmware.
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