First, this thesis summarizes the current image's encryption algorithm, analyzes these algorithm's merit and the cause of inconformity for images of encryption.
本文首先对现有图像加密算法入行总结，剖析了这些算法的长处及其不适合图像加密的原因。
This thesis analyzes and researches these three problems. And the applicable results are obtained.
本文分别针对这三个问题进行了分析和研究，并得到了一些研究成果。
This thesis selects altogether fifty poems in the Tang Dynasty. It first analyzes the implicit coherence in these poems, respectively on the linguistic and cultural levels.
本文选择了五十首唐诗，首先分别从语言和文化角度分析了中国古诗中存在的隐性连贯。
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