释放非托管资源所占用的内存。

Affranchise memory occupied by unmanaged resources.

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这会导致出现两种您需要关注的完全不同的模式，托管资源模式和托管任务模式。

This leads to two distinct patterns you should be concerned with — the managed resource pattern and the managed task pattern.

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策略部分介绍了托管资源模式是如何扩展到云资源模式的，以及托管任务模式是如何扩展到云任务的。

The strategy section shows how the managed resource pattern is extended to the cloud resource pattern and the managed task pattern is extended to the cloud task pattern.

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