directional

adj.

方向的；定向；

directional drilling定向钻进；定向钻井；定向钻孔

directional solidification定向凝固

directional valve方向阀；定向阀

directional control定向控制

solenoid directional valve电磁换向阀

directional coupler定向耦合器

directional derivative方向导数

directional antenna定向天线

directional control valve n. 定向控制阀

directional distribution方向分布

directional light平行光；定向光源；方位灯

directional filter方向滤波器；分带网络

directional stability方向稳定性；航向保持性；航向稳定性

directional property定向性；方向性

1. The foil winglets give added lift and directional stability.
   此外，箔翼也能助进船箔的提升和保持方向的稳定。
2. Cardioid is directional on one side only, and is typically used for drums.
   心形是单一的指向一个方向，非常适合用来录鼓。

Statistics of Directional Data
Statistics of directional data.
Strength and tempo of directional selection in the wild
Contourlets: A directional multiresolution image representation
A filter bank for the directional decomposition of images: theory and design
Productivity and Undesirable Outputs: A Directional Distance Function Approach
The Contourlet Transform: An Ef cient Directional Multiresolution Image Representation
The contourlet transform: an efficient directional multiresolution image representation
The contourlet transform: an efficient directional multiresolution image representation
The codon adaptation index-a measure of directional synonymous codon usage bias, and its potential applications