They are in different positions. The preface is published before the text, and the preface is in the text, which starts as the first chapter. The contents of the two are different. The preface mainly explains the basic content, compilation (translation) meaning, the process of writing, academic value and translator's introduction of this book. The introduction is the opening or summary of this article.

It is used to explain your own topic, the main direction of the paper, the process and situation of document retrieval (that is, what the predecessors have done in this regard), what innovations (or arrangements) your paper has, the research methods used, the general structure of the paper, and other issues that need to be explained.

The preface can be written by the author himself or by others. I wrote the introduction myself. In the same article, there can be both a preface and an introduction. There is no difference between introduction and preface. Introduction is also called introduction, introduction or introduction.

Expand knowledge:

Thesis is a Chinese word, which is commonly used in classical literature. It refers to conversation or exchange of ideas. Nowadays, papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short.

It is not only a means to discuss problems in academic research, but also a tool to describe academic research results in academic exchanges. Including academic papers, graduation papers, dissertations, scientific papers, achievement papers and so on.