Undergraduate thesis generally uses CNKI undergraduate PMLC system. The system has a "joint comparison database of college students' papers", which can detect the repeated parts in the papers more accurately.

Generally speaking, it takes 30 minutes to 120 minutes to check the duplicate papers of HowNet, and the final version is used more. Paperless duplicate checking can be used to check the first draft. Different educational background and different schools may have different requirements and standards for duplicate checking of HowNet, so it is necessary to operate according to the requirements of the school.