＞数理逻辑与数学基础＞递归论＞释义 arithmetical hierarchy 算术分层 arithmetical hierarchy 算术分层†，算术谱系
理论计算机科学 可计算性与计算复杂性 释文 arithmetical hierarchy 算术层谱
- factors
- factors affecting community structure
- factors associated with elderly health
- factor score
- factor set
- factor space
- factors substitutability
- factor state
- factor structure
- factor synthesis law
- factor system
- factor theorem
- factor transformation
- factory act
- factory buildings
- factory-cultivated vegetable seedling
- factory farming
- factory law
- factory method pattern
- factory-oriented efficient agriculture demonstration zone
- factory production
- factory records
- factory to customer
- factory trawler
- FACTS