directional /dəˈrɛkʃənl̟/ adjective Learner's definition of DIRECTIONAL
1
: relating to or showing direction方向的;指示方向的 -
We work with maps to improve the students' directional skills.我们用地图提高学生辨别方向的能力。
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directional stability方向的稳定性
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the directional signal lights on an automobile汽车的转向指示灯
2
technical : used for receiving sounds, radio signals, etc., that are coming from a particular direction(接收声音、无线电信号等)定向的