• 1. Directional: 方向性 | 定向的 | 方向 | 方向型
• 2. directional light: 平行光 | 方向性光源 | 方向光 | 方位灯
• 3. directional antenna: 定向天线 | 指向天线 | 指向型天线

更多释义

• 1.The faint arrows, similar to the directional markings on a tactical map, are one of the rare carry-overs from his military world.
  微小的箭头类似于战术地图上的方向标记，是他的军事世界中罕见的遗留物之一。
  dict.yoduao.com
• 2.Jets of compressed air gave the aircraft lateral and directional stability.
  压缩气体喷流从侧面和正面稳定了机身。
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• 3.This "directional drilling" has several advantages
  这种“定向钻取”的优势如下
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