求翻译：在面向社会公示的前提下，各校长可实名向北大推荐优秀学生，经中学校长实名推荐的学生，可成为高校自主招生直接候选人。是什么意思？

For public notice under the premise of the heads can be real names to recommend outstanding students to Peking University, the students recommended by high school principal, college admissions directly to candidates.

In the community of public school principals, the real name can be recommended to North High School principal outstanding students, real name recommended by the student, the independent colleges and universities can be a candidate for admission directly.

In faces under the premise which the society male shows, each principal may solid recommend the outstanding student to Beijing University, after middle school principal solid recommendation student, may become the university independent recruitment of students direct candidate.

On the premise of social-oriented publicity and heads to their real names to recommend outstanding students of Peking University, secondary school students recommended by the real name, to become a University independent admission candidates directly.

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