加密是使用密钥对数据进行可逆转换的加密算法。

Ciphers are cryptographic algorithms that can reversibly transform data using a key.

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利用差分平移和差分扩张，提出一种新的应用于数字矢量地图的可逆水印算法。

Based on the difference expansion and difference shifting, a novel reversible watermarking algorithm for digital vector map is proposed.

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为了提高可逆逻辑自动生成与优化的效率，我们提出了类模板技术和一类快速算法。

For raising the efficiency of the reversible logic automatic born and optimization, we put forward the similar template technique and a type of fast algorithm.

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