directional [dɪˈrɛkʃənəl, daɪ-]

例句:

• Jets of compressed air gave the aircraft lateral and directional stability.
  压缩空气的喷吐使飞机的左右和前后都能保持稳定。
  
• Dish aerials are highly directional.
  碟形卫星天线的定向性非常强。
  
• The length of the fuselage was increased due to a degree of directional instability.
  由于存在某种程度的航向不稳定性，机身被加长了。
  
• Evolutionary Jump represents cutting through time, fronting different directional change.
  来自SA
• It was then, aready, directional, linear and universal.
  来自SA
• As I understand it, the beam is non-directional, right?
  来自ENGADGET