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- IMF双向选择系IMF divergent lines
- 白羽肉鸡双向选择系杂交效果研究Studies on crossing experiments in chicken of fat and lean line
- 脂肪选择系小鼠生长和繁殖的研究Study on the Growth and Bruding of Fat Selection Strain of Mice
- 双向选择法bi-directional selection
- 划卡双向选择Two-way selection, referring to employer and employee choosing each other in a job market
- 中文系department of Chinese language and literature
- 菜系style of cooking
- 双向选择制度two-way choice system
- 全系holophyly
- 单项选择simple selection
- 报系syndicate
- 参数选择preferences
- 色系colour system
- 数学系department of mathematics
- 菜单选择menu selection
- 大陆法系Continental Legal System
- 供需见面，双向选择Outgoing graduates meet recruiters face to face and choose as both see fit
- 系鞋带tie the shoelace
- 时间选择timing
- 白垩系cretaceous
