例如，它可以帮你测试自定义的异常类，验证自定义类型的Equals和GetHashCode方法是否一致，以及检查IList的不变性。

For example, they can help you test your custom Exception class, verify that your datatype's Equals & GetHashCode are consistent, and check IList invariants.

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由于指纹具有唯一性和不变性，长期以来指纹识别一直是个人身份识别最有效的方法之一。

Fingerprint identification has been one of the most effective methods on personal identification from long time ago due to fingerprints' uniqueness and invariance.

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因此，需要寻找一种具有旋转和比例不变性的图像识别方法，以满足实际应用中的需要。

So a method of image recognition with rotation and scale invariance is required to satisfy the practical application.

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