A duplicate checking rate of 30% means that no more than 30% of the words or contents in the paper are the same or similar to other documents. In the process of duplicate checking, the system will compare the contents of the paper with the data collected in the database to find out the duplicate parts. If some contents in the paper are similar or identical to other documents, they will be marked as duplicates.

In order to reduce the duplicate checking rate of papers, it is necessary to avoid being identical or similar to other documents as much as possible. This can be achieved by rewriting, modifying and adjusting. At the same time, we need to pay attention to the format and typesetting of the paper to avoid high duplicate checking rate due to format or typesetting problems.