directional中文什么意思

发音:   用"directional"造句
adj.
1.方向的。
2.【无线电】指向的,定向的。
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例句与用法

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  1. The window inevitably imparts directional properties .
    (计数器的)窗不可避免地具有方向性。
  2. An array of wave probes can be used as a directional antenna .
    排成阵列的测波仪,可作为波浪传播方向的感触器。
  3. Counters can, of course, be made highly directional by the use of external collimation .
    当然可以利用外部准直法来提高计数器的方向性。
  4. This principle is the basis for the operation of directional couplers, the implementation of which usually takes the form shown in fig. 3. 23 .
    这个原理就是走向耦合器工作的依据,其装置一般具有图323所示的形式。
  5. Stability analysis of drill - string in directional drilling
    定向井钻柱稳定性分析

英文释义

a
  1. relating to or indicating directions in space; "a directional microphone"
  2. relating to direction toward a (nonspatial) goal; "he tried to explain the directional trends of modern science"
形容词
  1. showing the way by conducting or leading; imposing direction on; "felt his mother''s directing arm around him"; "the directional role of science on industrial progress"
    同义词:directing, directive, guiding

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