directivity

1. The design and realization of projecting transducer directivity pattern field-testing instrument
   发射换能器指向性现场测试仪的设计与实现
2. This directivity guide is the result of the joint effort of Chinese sculptors, but it can not be denied that the role of Wang Keqing is very prominent.
   这种方向性的导引，是中国雕塑家共同努力的结果，但不可否认，王克庆的作用是十分突出的。
3. Directivity Of The Vector Hydrophone And The Technique Of Dealing With Signal
   矢量传感器的指向性及其信号处理技术研究
4. Directivity of the Bowed Stringed Instruments and Its Effect on Orchestral Sound in Concert Halls
   弦乐器的指向性及其在音乐厅中对管弦乐音响的效应
5. A transducer with large directivity and high transmitting sensitivity
   具有大指向性开角及高发射电压响应的发射换能器
6. Three key parameters, namely beamwidth, directivity and maximum sidelobe level, are drawn versus the distance between field points and the center of aperture.
   采用口径场绕射积分求取了天线的近场及远场方向图，绘制了波束宽度、方向性和最大副瓣电平三个关键参数随场点距离的关系曲线。
7. Broadband technique of fast measuring directional coupler directivity
   快速测量定向耦合器方向性的宽带技术
8. The definition of directivity factor, directivity index& equation are introduced firstly.
   介绍了指向性因数和指向性指数的定义、计算式。
9. The relationship of the scattering area, the scattering intensity, the transmit loss and the directivity of the beam with the received angle in the same condition is studied.
   在全向发射不同接收指向条件下推导出散射面积计算公式，考察了此时椭圆环上的散射面积、散射强度、传播损失与接收角之间的关系。
10. The directivity of curvilinear dipole is analysed by the basic principle of antenna array, the relationship between the directivity and the length of curvilinear dipoles is obtained.
    本文利用天线阵基本原理近似分析了曲线振子的方向性系数，得到了方向性系数随曲线振子长度的变化关系，为曲线振子天线的进一步研究及设计提供参考。
11. Design of Microphone Directivity Measurement System Based on Virtual Instrument
    基于虚拟仪器的传声器指向性测量系统
12. Balloon directivity patterns are stable over repetitions.
    在重复测量中显示其指向性很稳定。
13. Design of Array Model with Intense Directivity and Sound Field Simulation
    一种强指向性基阵模型的设计及声场仿真
14. The average power reflection coefficient, directivity, power spectrum are obtained for different edge plasma densities and for different phasings between main waveguides.
    计算了其平均功率反射系数、方向性系数和功率谱与等离子体边缘密度和主波导相位差等参数的关系。
15. This is SME "S Lean Six Sigma Transformation Upgrade Stratagem Study, To Lead SME" S Development and Improvement directivity.
    本文是中小企业精益六西格玛转型升级战略研究论文，对中小企业转型升级发展改善具有指导意义。
16. Correction for the Directivity of Beam Width in Bathymetry
    海洋测深波束角效应改正的方向问题研究
17. Why is it necessary to explain the directivity of thoughts and provide clues?
    为什么让别人感受到，为什么会有自我的思维指向和线索？
18. 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。
19. A resource-based city ′ s social and economic activities are based on the development, processing and utilization of resources and associated services and have a clear resource directivity.
    资源型城市以资源的开发、加工、利用及相关配套服务为基本社会经济活动，具有明显的资源指向性。
20. Interference ( or'lobing ') between the two units causes a dip in power response around this frequency, with a peak above it due to their differences in directivity.
    两个单元间的干扰（凸角）会在该频率周围产生功率响应急降，并由于方向性的差异而产生一个峰值。
21. The higher the acoustic frequency is, the stronger its directivity is.
    而且所有声频均有指向性，声频愈高，指向性愈强。
22. A way to widen the directivity of protuberant spherical piezoelectric transducer
    一种拓宽凸球面压电换能器指向性的方法
23. By introducing anisotropic decomposition into the transform, the associated wavelet bases may have different sizes in different dimensions, and better directivity.
    该变换引入了各向异性分解方式，由此得到的小波基在各个方向上尺度可以不同，并具有更好的方向性。
24. Directivity Effect of Near-fault Ground Motion and Super-shear Rupture
    近断层地震动方向性效应及超剪切破裂研究
25. The utility model has the advantages of stabile structure, bending in any directions, smooth inner wall in bending, etc, overcomes the defect of directivity existing in the existing similar product.
    本实用新型具有结构稳定、可向任意方向弯曲、弯曲时内壁光滑等优点，克服了现有同类产品存在方向性的缺陷。
26. To improve the directivity and gain, the four units of plate end-fire antennas are arranged in the direction of end-fire.
    为了提高增益和方向性，把四个平板端射天线单元在端射方向上排列。
27. The Influence of Dimensional Parameters of Linear Phased Array Transducer on Beam Directivity
    超声相控线阵探头线列参数对波束指向性的影响
28. Influence from Ground Attenuation, Screening, Reflection, Directivity Index.
    地面衰减，屏蔽，反射，指向性指数的影响。
29. The Design of Microstrip Directional Coupler with Automatic Directivity Tuning automatic frequency control transformer
    带自动方向性调节的微带定向耦合器的设计自动频率调整变压器
30. Directivity test technology and directivity sharpening of fiber-optical vector hydrophone
    光纤矢量水听器指向性测试及锐化技术

noun

1. the property of a microphone or antenna of being more sensitive in one direction than in another
   1. the antenna received signals with no directivity

   Synonym:    directionality

2. the quality of being directive

   Synonym:    directiveness