The personnel of an organization are the people who work for it.
Since 1954 Japan has never dispatched military personnel abroad.
自1954年以来,日本再也没有向海外派遣过军事人员。
There has been very little renewal of personnel in higher education.
从事高等教育事业的人员很少更新。
Personnel is the department in a large company or organization that deals with employees, keeps their records, and helps with any problems they might have.
human resources
Her first job was in personnel.
她的第一份工作是在人事部。