It is an important part of scientific and technological documents such as academic papers, periodicals and research reports. The beginning of an article is usually a text summary, which aims to provide a concise overview, explain the main research contents, methods and achievements of the article, and help readers quickly understand the main idea of the article.

About writing abstract, generally need to pay attention to the following points:

The length of the abstract of 1. should usually be controlled at about 250-300 words, with a maximum of 500 words.

2. At the beginning of the abstract, it is necessary to briefly introduce the background and research purpose of the paper, and make clear the theme and research value of the article.

3. After that, the main contents and results of the study are summarized and expounded by summarizing the investigation, experimental verification, data analysis and conclusion explanation.

4. Finally, the significance and main contribution of the research are summarized, and the further research direction and possible application prospect are pointed out.

At the same time, abstracts are widely used in other fields in academic papers and scientific documents. The following are some common usages and fixed collocations of Abstract:

1. conference summary: conference summary refers to the summary used for exchanges, reports and exhibitions in academic conferences, usually presented in the form of PowerPoint or posters, aiming at showing one's own research results and ideas and attracting the attention and cooperation of other scholars.

2. Summary of proposal: The summary of project application refers to the summary of application submitted to the organization or the government for obtaining financial support or improving the operation mode of the organization in the fields of scientific and technological research or social welfare, and it is necessary to clearly explain the research content, value and achievement expectation of the project.

3. Review Abstracts: A Summary report refers to the synthesis of multiple documents to form a more comprehensive literature review report. It is necessary to summarize and evaluate the practice and achievements in the related fields of literature research.

4. Abstract: Abstract refers to the first part of the paper, which aims to explain the theme, research methods and research results of the paper, and summarize and evaluate the work.