＞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
- agility
- agility training
- Agi Mishol
- Ag-In-Cd alloy
- aging
- aging appraisal of irrigation scheme
- aging design
- Aging Economics
- aging effect
- aging genes
- aging of polymer
- aging of population
- aging-precipitating-strengthening superalloy
- aging process
- aging resistance of wood-based panels
- Aging Schedule
- aging technique of vacuum electronic device
- aging test
- aginomoto
- A. Girard
- A. Girard (1595—1632)
- A Girl
- A Girl From Hunan
- agitated vessel
- agitating tank