External review is generally three articles and five trials, with no less than three experts. If the external review experts need to reach a unified review document, the paper will be regarded as having passed the review.

Experts who evaluate professional titles are randomly selected and partially fixed. Fixed external audit experts are fixed candidates, and the selected external audit experts will be randomly selected from relevant units. Random people are not fixed, they will not be notified in advance, and they will be selected nearby to avoid cheating.