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The first part is an introduction, including two chapters.
第一部分是全文的开篇，包括两章内容。
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The second part, including chapter two and three, put forward the basis theory.
第二部分是论文的基础理论部分，由第二章和第三章组成。
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The second part, including chapter two and three, put forward the basis theory.
第二部分是论文的基础理论部分，由第二章和第三章组成。
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