同时，对党校校园网信息管理平台二次开发与应用的主要内容进行了较为详细的探讨，具有一定的参考价值。

Meanwhile, on the campus network information management platform for the development and application of the second major content of a more detailed discussion, with some reference value.

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为了将两者有效结合，将二次误差矩阵应用在整个简化过程中，简洁地传递了两个过程中的相关信息。

In order to effectively combine the two schemes, uses quadric error matrix to transform related information between the two steps in the whole process.

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应用dct和DWT两种变换方式对信息进行二次隐藏，根据相关理论提出隐藏的算法和实现的可能过程，并对实现中可能存在的不足和改进进行了简要分析。

This paper proposes to use DCT, DWT to hide the information twice, and provides the hidden method and the possible processes based on the correlative theory.

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