Chemistry is a practical course, and many chemical experiment results can only be obtained through repeated experiments. There are many formulas in chemistry, and chemistry papers can't do without formulas. People who have studied chemistry should know that it is difficult for ordinary people to do it themselves, and it is basically the research of predecessors. This society can't be optical, and there must be repetition rate. So will the chemical formula in the paper be checked again?

Ordinary checkweighing systems cannot detect chemical formulas. Because the recognition degree of chemical formula is not high, because of the problem of duplicate checking algorithm, it can not be well compared and the repetition rate can not be effectively recognized. Only the campus paper duplicate checking system can identify formulas, codes, photos, etc. This is very difficult in repeated inspection. In order to avoid duplicate checking in school, the chemical formula in the paper was tested. Some problematic students deliberately put repeated content on code boxes and pictures to reduce the repetition rate. At present, this method still has some shortcomings.

The general chemical formula is fixed and cannot be modified at will. Chemical paper is difficult to modify and reduce weight. When reducing the weight of chemical papers, we can focus on the abstract, introduction and other parts of the paper. The repetition rate of papers is an important index to evaluate the quality of papers. In fact, the overall quality of the paper is also an important index to evaluate the quality of teachers' papers. When we write, we should pay attention to the quality of the paper and the control of repetition rate.