directional

英 [dəˈrekʃənl]

美 [dəˈrekʃənl]

adj.  (发出或接收信号、声音等)定向的，指向的; 方向的

BNC.15082 / COCA.15237

牛津词典

adj.

• （发出或接收信号、声音等）定向的，指向的
  producing or receiving signals, sound, etc. better in one particular direction
  1. a directional microphone/aerial
     定向传声器 / 天线
• 方向的
  connected with the direction in which sth is moving
  1. directional stability
     方向稳定性

柯林斯词典

• ADJ-GRADED (天线、扩音器等)定向的
  If something such as a radio aerial, microphone, or loudspeaker isdirectional, it works most effectively in one direction, rather than equally in all directions at once.
  1. Dish aerials are highly directional...
     碟形卫星天线的定向性非常强。
  2. The directional microphone trained on Foresters Cottage could pick up every word uttered inside at several hundred yards.
     对准福雷斯特小屋的定向扩音器在几百码远的地方也能捕捉到里面的人所说的任何一句话。
• ADJ 方向的;指向的
  Directionalmeans relating to the direction in which something is pointing or going.
  1. 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。

英英释义

adj

• showing the way by conducting or leading
  1. felt his mother's directing arm around him
  2. the directional role of science on industrial progress
  Synonym:directingdirectiveguiding
• relating to or indicating directions in space
  1. a directional microphone
• relating to direction toward a (nonspatial) goal
  1. he tried to explain the directional trends of modern science

双语例句

• The paper presents an ant colony clustering algorithm based on directional similarity: ACCADS.
  提出了一种基于方向相似性度量的蚁群聚类算法。
• Directional solidification and single crystal will be the development direction of the casting microstructure simulation.
  铸件微观组织模拟研究向定向凝固及单晶方面发展。
• 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。
• A cellular automaton model was developed to simulate the primary spacing selection of dendritic array during directional solidification.
  发展了一个元胞自动机模型来模拟定向凝固中枝晶阵列的一次间距选择。
• The technique of directional demolition blasting of a tall frame-structured reinforced concrete tower is introduced.
  介绍了高耸框架结构的定向爆破拆除方法。
• We discuss several different definitions of directional derivative and gradient vector.
  讨论了几种不同的方向导数和梯度的定义。
• The dispersion and directional array effects of aluminum powders were characterized with high power microscope and spectrophotometer.
  采用高倍显微镜和分光光度计对铝粉的分散和定向排列效果进行了表征。
• Dish aerials are highly directional
  碟形卫星天线的定向性非常强。
• The directional microphone trained on Foresters Cottage could pick up every word uttered inside at several hundred yards.
  对准福雷斯特小屋的定向扩音器在几百码远的地方也能捕捉到里面的人所说的任何一句话。
• Two types of light sources will be considered: Directional and Point lights.
  两种类型的光照我们将要考虑：方向光和点光源。