理学 编译系统 释 pre-processor 预处理器 根据特定的预处理指令对源代码进行相关文本操作的独立程序，包括删除注释、包含其他文件以及宏替换等。
系统软件 语言与编译 释文 precompiler 预编译程序
- unilayer
- unilineal evolution
- unilinear evolution
- unilluminated hemisphere
- unilocular fat
- unilocular sporangium
- uni-male group
- unimodal
- unimodal distribution
- unimodal distribution function
- unimodal frequency curve
- unimodal function
- unimodality
- unimodality of a sequence
- unimodality problem
- unimodal mapping
- unimodal probability distribution
- unimodal sequence
- unimodal singularity
- unimodular
- unimodular affine transformation
- unimodular affine transformation; equiaffine transformation
- unimodular congruence
- unimodular determinant
- unimodular element