返回库函数 return-to-libc
闪回数据库 Flashback Database
数据库闪回 Flashback Database
剑桥期刊电子回溯库 CJDA ; Cambridge Journals Digital Archive
水库回水 backwater of reservoir ; reservoir backwater
毛利库存回报率 GMROI
南亚研究回溯数据库 South Asia Archive
回水库容 backwater storage
水库回水计算 reservoir backwater computation
返回国库券的收益率 TBILLYIELD
但只有在你连接到上下文对象的时候，你才可以修改对象并把它们保存回数据库。
You can change objects and save them back to the database, but only if you are connected to a context object.
您可以在需要这些规则时从储存库中加载它们，而在您不需要时将它们卸载回储存库。
You can load the rules from the repository when you need them and unload the rules back into the repository when you do not need them.
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