对于这两个数据库，用于存储这些XML文档的关系模式将有所不同。
The relation schema for storing these XML documents will vary for the two databases.
为了解寻址模式对于PowerPC处理器上的加载和存储指令是如何工作的，我们必须先要对PowerPC指令格式有点了解。
To learn how addressing modes work for load and store instructions on PowerPC processors, you must first understand a little bit about the PowerPC instruction format.
存储具有模式的单个事件，并随时计算任何未来事件（对于像永远重复的事情等）。
Store a single event that has a pattern in it and calculate on the fly any future event (for something like repeat forever, etc). Use cron patterns or even better RRULE stuff.
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