＞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
- shadowing
- shadowing fading
- shadowing property
- shadow internet
- shadowless photography
- shadow map
- shadow mask
- shadow matter
- shadow moiré
- shadow photography
- shadow photometer
- Shadow-Planet
- shadow play
- shadow play music
- shadow play stage at Qianpanggou Village
- shadow play stage of the Guandi Temple in Mashuling Village
- shadow play theatre of Taoshugou Village, Xiaoyi City
- shadow price
- Shadow prices in project evaluation and review
- shadow scattering
- shadow side
- shadow space
- Shadow Spring and Autumn Annals
- shadow transit
- shadow volume