本篇论文主要分为以下五个部分：第一部分为引言，简单介绍本篇论文的研究意义、研究方法以及预期目标。
This paper is divided into the following five sections: the first part is the introduction, a brief study of the meaning of this paper, research methods and target.
本篇论文共分七章：第一章简明扼要地介绍了错误、错误分析以及本篇论文的结构脉络。
This thesis is divided into seven chapters: Chapter 1 gives a brief introduction to errors, Error Analysis and the structure of the M.
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