elementary direction characteristic 基本方向特性

characteristic direction [计] 特征方向

Fuzzy Direction Characteristic 模糊方向特征

double-direction characteristic 双向特性

direction characteristic function 方向特性函数

direction finding characteristic 测向特性

characteristic direction of prism 棱镜特征方向

the characteristic direction method 特征方向法

voltage-current characteristic of forward direction 正向伏安特性