1. Standards and specifications: During the audit process, we will carry out item-by-item inspection according to the relevant signs and regulations promulgated and implemented by the state and the corresponding requirements formulated by administrative departments such as laws and regulations, and according to the outline formulated by the state, so as to ensure that the effects produced after approval reach the expected goals.

2. Standardization and standardization: Auditing can ensure the standardization and standardization of mathematical symbols and formulas. Auditors will check the symbols used in the script, the layout of symbols and the writing of formulas to ensure that they conform to mathematical norms and conventions. This helps to avoid confusion or mistakes, and makes mathematical expressions clearer and more accurate.