Required. According to the filling form for applying for the National Youth Foundation resume, there will be two lines of postdoctoral experience in the scientific research and academic work experience of the resume. The first line is work experience, and the second line is personal information. Both need to be filled in, so they need to be filled in. work experience. The abbreviation of the National Natural Science Foundation of China Youth Science Fund: Youth Fund refers to men under the age of 35 and women under the age of 40 who apply for the National Natural Science Foundation of China for the first time.