Generally speaking, the paper duplication checking system will include your paper in the database if it is submitted more than three times, and the repetition rate of re-submission is too high. Repeated submission in duplicate checking systems such as HowNet is not recommended.

The outline of the paper is written by the author after finishing writing the paper, reading the full text and writing information or vocabulary that can express the main content of the paper. These information or words can be found and selected from the title or content of the paper. For example, in the above example, six keywords are selected, of which the first three are selected from the title of the paper.

The latter three are selected from the content of the paper. The selection of the last three keywords supplements the main content information that the title of the paper fails to express, and also improves the conceptual depth involved. Need to choose, together with the keywords selected from the title, to form the keyword group of this article.

The outline of the paper is written by the author after finishing writing the paper, reading the full text and writing information or vocabulary that can express the main content of the paper. These information or words can be found and selected from the title or content of the paper. For example, in the above example, six keywords are selected, of which the first three are selected from the title of the paper.

The latter three are selected from the content of the paper. The selection of the last three keywords supplements the main content information that the title of the paper fails to express, and also improves the conceptual depth involved. Need to choose, together with the keywords selected from the title, to form the keyword group of this article.