In order to avoid double checking, the following modification techniques can be considered:

1, replace keywords or concepts. Replacing original keywords or concepts with synonyms or synonyms can prevent papers from being detected by the duplicate checking system.

2. Increase the length of the paper. Appropriately increasing the length of the paper, such as adding some new experiments or data, or expanding the existing content, can reduce the duplicate checking rate of the paper.

3. Delete redundant content. Deleting some useless contents in the paper can reduce the repetition rate of the paper. In particular, you can delete or modify the copied and pasted content.