＞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
- PTSD
- P/T system
- PTT
- PT technology
- PTTH
- PTTI
- PTt path of regional metamorphism
- P. Turan
- P. Turán
- P. Turán (1910—1976)
- PTV
- PTX
- ptyalin
- ptyalism in children
- ptychoid
- ptygmatic fold
- ptyosome
- P-type asteroid
- P-type calcium channel
- p-type doping
- p typed semiconductor
- p-typed semiconductor
- p-type electrode
- P type lectin
- P-type lectin