It means you can't apply for fund support. It is difficult to apply for a youth fund, which requires a solid foundation. The Youth Science Fund Project supports young scientific and technological personnel to independently select topics and carry out basic research work within the scope of funding from the Science Fund, and pays special attention to cultivating the ability of young scientific and technological personnel to independently preside over scientific research projects and carry out innovative research, stimulating their innovative thinking and cultivating successors of basic research. As the person in charge, he is undertaking or undertaking projects of the Youth Science Fund (including small-scale exploration projects with funding period of 1 year and projects that have been terminated or cancelled), and may not apply again as an applicant.