英语释义

• the property of a microphone or antenna of being more sensitive in one direction than in another

片语

microphone directivity传声聘向性

directional property定向性；[冶] 方向性

Directivity Tuning方向性调节

antenna directivity[电讯]

Directivity u方向性

b Directivity指向性

controlled directivity天线的受控方向性

receiving directivity接收方向性

directivity factor[数][声] 择向性因数

Directivity Coverage覆盖角度

英汉例句

• then they discovered that the directivity of the magnet.

  后来又发现了磁石的指向性。

• 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。

• 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。

• 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。

• 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。

• 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。

• 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。

• 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。

• the third part is about the research on the improvement of the directivity of antennas using wire medium.

  然后研究谐振腔天线一些参数的对其频带和方向性的影响。

• 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。

• 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.

  为了研究不同沖击速度条件下块煤沖击韧度的变化特征，以及块煤节理方向性对块煤沖击韧度的变化特性。

• 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。

• simulated results show that the directivity and the gain of the array are improved.

  模拟结果表明，天线阵的方向性以及增益都得到了加强。

• the rupture directivity effect is due to rupture propagation and radiation pattern effects.

  破裂方向效应是由破裂传播和辐射图效应引起的。

• 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。

• the establishment question situation, can spiritedly cause the classroom, the knowledge simple to be easy to understand, its intense practice directivity is extremely obvious.

  创设问题的情境，能使课堂生动活泼、知识浅显易懂，其强烈的实践指向性是极其明显的。【关键词】问题情境；创设；

• the simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. applied range of these formulae are analyzed and discussed.

  导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。

• 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。