The restrictions of the Fund Committee are: the total number of projects applied for and undertaken by senior professional and technical positions (titles) shall not exceed 3; The total number of projects applied for and undertaken by persons with intermediate or junior titles as principals shall not exceed 1, and the number of projects participated as participants is not limited. After being promoted to a senior professional title, the limited projects undertaken by the person in charge are not counted as participants. So you can participate in another project after hosting one project.