在虚拟化的所有层次和所有方向上的努力造就了相关的软件，它们能够让科学走在人为约束(在许多计算环境中是很常见的)的前面。

Diligence in virtualization at all levels and in all directions has resulted in software that puts science before the artificial constraints common in many computing environments.

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通过从这一约束条件划分子类， RelevantResource 类成为一种包含一个所有满足该约束条件资源集合的虚拟类。

By its subclassing from this restriction, the RelevantResource class is a sort of virtual class that includes a set of all resources that meet the restriction.

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虚拟化还能隐藏物理约束，从而更轻松地最小化物理资源更改的影响。

It hides physical constraints, which makes it easier to minimize the impact of changes to physical resources.

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