The difference between a brief introduction and an abstract is that the content results are different, the content size is different, and the purpose is different.

First, the content results are different.

1, Introduction: In the introduction, you can omit the result, because there is a special section in the text to write the result, so there is no need to repeat it in the introduction.

2. Abstract: The main research results must be listed.

Second, the content size is different.

1, Introduction: The introduction can be shorter. In order to shorten the space, you can briefly introduce the importance, significance or problems to be solved in a certain research field in one or two sentences.

2. Abstract: The abstract contains only five sentences. The first sentence is hypothesis, the second and third sentences are research contents, and the fourth and fifth sentences cover research methods and results.

Third, the purpose is different.

1, Introduction: The purpose of the introduction is to let readers know the content of the paper first, so as to decide whether to read the full text.

2. Abstract: The purpose is to summarize a scientific research work or technical practice and summarize the research purpose, methods and achievements.

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