SCI journals have strict requirements on the repetition rate of papers. First of all, SCI journals require the originality of papers, that is, the contents of papers must be the author's own research results, and others' research results cannot be copied. This requires the author to quote and annotate the cited documents correctly when writing a paper to avoid plagiarism.

Secondly, SCI journals also have clear requirements for the repetition rate of papers. Generally speaking, SCI journals require that the repetition rate of papers should not exceed 20%, which is to ensure the originality and scientificity of papers. If the repetition rate of the paper exceeds this standard, the paper may be rejected by the editorial department of the journal.

In addition, SCI journals have stricter requirements on the repetition rate of papers. Some journals even require that the repetition rate of papers should not exceed 10%, which is a great challenge for authors. Therefore, when writing a paper, the author must reduce the repetition rate of the paper as much as possible to ensure that the paper can be accepted by the journal.

In order to reduce the repetition rate of papers, the author can adopt the following methods: First, when writing a paper, try to express his views and research results in his own language and avoid directly quoting others' views and research results; Second, when quoting other people's research results, we must quote and annotate them correctly to avoid plagiarism; Third, after writing a paper, you can use special duplicate checking software to check the repetition rate of the paper. If the repetition rate is found to be too high, it should be corrected in time.

Generally speaking, SCI journals have strict requirements on the repetition rate of papers. When writing a paper, the author must reduce the repetition rate of the paper as much as possible to ensure that the paper can be accepted by the journal.