7. There is no need to quote unless the document confirms or denies the published works of others.
8. Abbreviations, abbreviations and codes must be explained when they first appear, except those that can be clearly understood by readers of adjacent majors. Other matters that should be paid attention to when writing scientific papers, such as adopting legal units of measurement, using language and punctuation correctly, are also applicable to the preparation of abstracts. The main problems in the compilation are: incomplete elements, or lack of purpose, or lack of methods; Citation is not independent and self-evident; Improper simplification.