directivity
n.
方向性，指向性；
英英释义
directivity[ direk'tiviti ]
n.
the property of a microphone or antenna of being more sensitive in one direction than in another
"the antenna received signals with no directivity"
同义词：directionality
the quality of being directive
同义词：directiveness
双语例句
用作名词(n.)
The antenna received signals with no directivity.
那种天线可接受没有方向性的信号。
权威例句
High-directivity spurline directional couplerCharacterization of forward-directivity ground motions in the near-fault region
Magnitude scaling of the near fault rupture directivity pulse ☆
Effects of Fling Step and Forward Directivity on Seismic Response of Buildings
CEDD: Color and Edge Directivity Descriptor: A Compact Descriptor for Image Indexing and Retrieval
CEDD: Color and Edge Directivity Descriptor: A Compact Descriptor for Image Indexing and Retrieval
CEDD: Color and Edge Directivity Descriptor: A Compact Descriptor for Image Indexing and Retrieval
Photonic crystal-based resonant antenna with a very high directivity
Evaluation of blind signal separation method using directivity pattern under reverberant conditions
The influence of array vertical directivity patterns on bottom reverberation for mid to high frequency active sonar working in litto...
1. How to get the desired frequency response and directivity pattern?
如何得到需要的频率响应与指向性图案？
http://acoustics.nju.edu.cn
2. The eXpression of directivity of far field and near field was derived.
推导出了此类换能器的远场指向性和近场声压的表达式。
dict.cnki.net
3. The antenna received signals with no directivity.
那种天线可接受没有方向性的信号。
www.nciku.com
4. With the rapid development of modern science and technology, laser is applied broadly than ever for the advantages of high directivity, high frequency, high energy and high coherence.
随着现代科学技术的迅速发展，激光以其高方向性、高频率、高能量和高相干性等优点得到更加广泛的应用。
dict.cnki.net
5. Its directivity is hardly noticeable due to the closeness of the sources.
这种方向性由于电源密封式是很难显而易见。
www.xinheaudio.com
6. Then they discovered that the directivity of the magnet.
后来又发现了磁石的指向性。
210.38.32.42
7. This paper presents a kind of two-element array, discusses its possibility of being used for array miniaturization and analyses the main factors for influencing its unilateral directivity.
本文介绍了一种单向性二元阵，探讨了其在基阵小型化中应用的可能性，分析了影响这种阵单指向性的主要因素。
dict.cnki.net
8. In order to improve the directivity of the transducer, we have employed two complementary piezoelectric elements in the construction.
同时在结构上加以改进，利用两片压电片在结构上互补，改善了传感器的方向性。
dict.cnki.net
9. The receptive array with directivity in the vertical plane has weight effect on the incident wave.
具有垂直方向指向性的接收基阵对入射声波有方向加权效应。
dict.cnki.net
10. Simultaneously, directivity water breakthrough or water breakthrough of flooded water in certain direction are able to be solved, so plane and profile conflict can be well - settled.
同时，能够解决方向性出水或注入水在某一方向上的突进，可解决水驱条件下的平面及剖面矛盾。
lib.cqvip.com
11. Millimeter-wave dielectric lens antenna is a kind of aperture antenna with high directivity.
毫米波介质透镜天线是一种高方向性的口径天线。
dict.cnki.net
12. In order to understand the properties of impact toughness of coal with different impact speeds and the change of impact toughness of lump coal to joint directivity of lump coal.
为了研究不同冲击速度条件下块煤冲击韧度的变化特征，以及块煤节理方向性对块煤冲击韧度的变化特性。
www.dictall.com
13. When designing a loudspeaker it is essential to perform free-space measurements to see the effects of driver directivity and baffle shape on the important polar response.
当设计一个扬声器时，进行自由场测量以观察喇叭的指向性和障板形状对于极性响应的影响是非常重要的。
www.hifidiy.net
14. In order to reduce the dependency of tuning operators, improve the tuning speed and detection accuracy, it designed a directional coupler with automatic directivity tuning.
为了减少对调试员工的依赖性，提高产品调试速度和检测精度，设计出一种可以实现自动方向性调节的定向耦合器。
danci.911cha.com
15. These are important for developing new antennas with a high directivity and a high workability.
这些结果对发展高方向性、可实用化的新型天线具有重要意义。
danci.911cha.com
16. Influence from Ground Attenuation, Screening, Reflection, Directivity Index.
地面衰减，屏蔽，反射，指向性指数的影响。
www.eia8.com
17. Detailed design of the vector hydrophone is described and the experimentally measured sensitivity and directivity characteristics are given.
叙述了该矢量水听器的设计方法，给出了相应的灵敏度和指向性测试结果。
dict.cnki.net
18. Based on the basic theory of array directivity realize infrasound focusing by line transducer array, and design a new parabolic array.
基于阵列指向性基本理论，本文采用均匀线列阵实现次声聚焦，并优化设计了抛物线型阵列。
www.dictall.com
19. The directivity, sensitivity and gain of the extended hydrophone are researched based on the model.
以此模型为基础，计算分析了成组光纤水听器的指向性和灵敏度。
dict.cnki.net
20. A novel audio beam loudspeaker which based on nonlinear propagation effects of ultrasonic in the air to generate audible sound with high directivity is presented.
提出了一种利用空气中超声波非线性传播效应制作的、可产生高指向性可听声的新型声束扬声器。
www.dictall.com
21. The course evaluation of ideological cultivation should obey the Principles of directivity, development, and integration.
思想品德课程评价要坚持方向性原则、发展性原则、整体性原则。
www.dictall.com
22. There is strong evidence that the actors wore masks that were fitted out with small megaphones to assist in increasing the directivity of the voices.
有确凿证据表明当时的表演者们戴着装有小型扩音器的面具，以辅助声音的方向性传播。
article.yeeyan.org
23. There is strong evidence that the actors wore masks that were fitted out with small megaphones to assist in increasing the directivity of the voices.
有确凿证据表明当时的表演者们戴着装有小型扩音器的面具，以辅助声音的方向性传播。
article.yeeyan.org
24. directivity angle
辐射仰角
-- 来源 -- 英汉 - 翻译参考[网络]
25. antenna directivity
天线方向性
-- 来源 -- 英汉 - 短句参考
26. receiving directivity
接收方向性
-- 来源 -- 英汉 - 翻译参考[网络]
27. array directivity
天线阵的方向性
-- 来源 -- 英汉 - 翻译参考[网络]
28. directivity curve
方向曲线
-- 来源 -- 英汉 - 翻译参考[网络]
29. directivity diagram
方向性图
-- 来源 -- 英汉 - 翻译参考[网络]
30. directivity factor
方向性因数
-- 来源 -- 英汉 - 翻译参考[网络]
31. directivity function
定向性函数
-- 来源 -- 英汉 - 翻译参考[网络]
32. directivity graph
方向特性图
-- 来源 -- 英汉 - 翻译参考[网络]
33. seismic directivity
地震方向性
-- 来源 -- 英汉 - 翻译参考[网络]
directivity
