DB2 9.5 文档的 Lock timeout reporting 一章提供了这些局限性的一个简短列表（参见下面的 参考资料）。

The Lock timeout reporting chapter in the DB2 9.5 documentation provides a short list of those limitations (see the Resources section below).

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这些新的模型，尽管有其局限性，但是这使得模型设计者不仅可以提出简单列表所不能回答的问题，而且可以通过模型看到现实世界中模糊细节的演变过程。

These models, limited though they were, let their creators ask questions no simply tabulated data could answer, and see processes that the details of the real world obscured.

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