This paper consists of four sections, not including the introduction and the conclusion.
本文除引言和结语外，共分为四部分。
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。
The first Chapter is the introduction, including research object, research meaning and research current situation.
第一章为绪论，包括研究对象和范围、研究意义和目的、前人研究现状等。
The first Chapter is the introduction, including research object, research meaning and research current situation.
第一章为绪论，包括研究对象和范围、研究意义和目的、前人研究现状等。
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