directional meaning in English
adj.
1.方向的。
2.【无线电】指向的，定向的。
Examples
- The window inevitably imparts directional properties .
（计数器的）窗不可避免地具有方向性。 - 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。 - 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。 - 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。 - Stability analysis of drill - string in directional drilling
定向井钻柱稳定性分析