Blind evaluation system is to send dissertations without the author's name to experts who can't know the author for evaluation, so the evaluation should be the most objective in ordinary colleges and universities.
Suggestions on perfecting the blind trial system;
1, cancel the one-vote veto system. If both experts are blind, it is suggested that the average score should be used to decide whether to allow the defense. If it is a blind trial by three or more experts, it is suggested that the opinions of most experts shall prevail. So as to avoid the adverse effects caused by the bias of experts.
2. Experts should also be managed dynamically. If there are some major mistakes, you can consider canceling their qualification as experts.