oreacle 为申请人的直接上级当直接上级安全级别30时为直接上级的的直接上级至安全级别=30为止

If the security level of the immediate supervisor of the applicant is less than 30, then the immediate supervisor's immediate supervisor (up to the point where the security level is greater than or equal to 30) is considered as the direct supervisor of the applicant.