p-rank of Abelian variety

例句：

1. 1. The company has a p-rank system for its employees.
   该公司为员工设立了一个等级制度。
2. 2.The p-rank of the new president is higher than that of the previous one.
   新任总统的级别比前任高。
3. 3. The students are ranked in terms of their academic achievements.
   学生们根据学术成就进行排名。