harmonic mean 调和平均†，调和中项
计算机体系结构 计算机模型 释文 harmonic mean 调和平均
- U.S. Food and Drug Administration
- U.S. Government Publishing Office
- U.S.Government Publishing Office
- U-shaped
- U-shaped cells
- U-shaped curve
- U-shaped distribution
- U-shaped valley
- Ushihara Kyohiko
- Ushin
- Ush Rebellion
- USIA
- U.S. Information Service
- using allusions
- using light in photography
- using of insurance guaranty fund
- using the guided positioning effect of saccharide compound
- using warming and heat-clearing simultaneously
- U.S.Invasion of Nicaragua
- USIS
- U.S.Labor Party
- US-LTER
- USM
- Usman Awang
- USMARC