＞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
- Lanxi Zhaoge
- Lan Xuefei
- Lan Ying
- Lan-Yin Mandarin
- Lan Yusong
- Lan-Yu wall gecko
- Lan Yuzhong
- Lanzarote
- Lanzhou-Chengdu-Chongqing oil product pipeline
- Lanzhou-Chengdu-Chongqing Products Pipeline
- Lanzhou city administrative service center
- Lanzhou Feng
- Lanzhou Guzi, a folk narrative singing in Lanzhou
- Lanzhou Guzi storytelling
- Lanzhou hookah
- Lanzhou Huanghe Ironbridge
- Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences
- Lanzhou large-tailed sheep
- Lanzhou-Lianyungang Railway
- Lanzhou military region
- Lanzhou Museum
- Lanzhou Shi
- Lanzhou University
- Lanzhou-Xining-Yinchuan urban agglomeration
- Lanzhou-Xinjiang High Speed Railway