It also includes the final summary part, and its abstracts, keywords and references are not included in the body part, and most of the words used in the article are only included in the body part. As we all know, a paper usually consists of title, author, abstract, keywords, text, references and appendix, some of which (such as appendix) are dispensable. The body part is also the most important part of the full text, so the following is also an introduction to the body part. The main body of the paper is counted from the introduction (preface) and includes the final summary. Its abstracts, keywords and references are not included in the text, and most of the words used in the article are only included in the text. Therefore, the writing of the main body of the paper must be taken seriously.

This theory is the main part of the paper, and it is the part that focuses on expressing the research results. The analysis of the problem and the demonstration of the viewpoint are mainly carried out and completed in this part. The quality of a paper mainly depends on how well it is written. This part of the content is relatively large and complicated, and it is generally discussed at several levels. In order to achieve a clear hierarchy and clear context, this part is often divided into several large sections. These paragraphs are called logical segments, and a logical segment can contain several small logical segments, and a small logical segment can contain one or several natural segments, so that the text forms several levels.