directivity
美 [dɪrek'tɪvɪtɪ] 
英 [dɪrek'tɪvɪtɪ]
- n.指向性；方向系数；定向性
- 网络方向性；指向特性；天线方向性
英汉解释
例句
The directivity fibers on the surface, could prevent run down of the suspended solid.
由于表面有方向性植毛，可有效阻止污泥的流失。
The poor design of the enclosures could cause the irregularity in frequency responses and directivity patterns.
不良的设计会导致频率响应不平缓，且频响随空间角度出现较大变化。
By the nonlinearity of the propagation medium-air, the audible sound with high directivity can be produced.
利用超声波在空气中传播的非线性交互作用，可以产生高指向性的可听声音。
A dual ayer array of strip rectangular dipoles structure is investigated, leading to a directivity bandwidth enhancement.
一双的唉阵列的条更长方形的偶极子结构被调查导致一方向性带宽增强。
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。
If have no a definite train of thought have no a directivity can follow deeply , so get turn over and lose.
如果没有一个确切的思路，没有一个指向性的深出可循，那么，得到的反而就少了。
Meanwhile, there was obvious directivity of topographic effects.
地形放大效应存在明显的方向性；
Compared to microwave, millimeter-wave has good directivity, Its detecting and imaging system can have higher resolution.
与微波相比，毫米波的指向性更好，其探测成像可实现更高的分辨率；
Coordinate transformation approach is introduced to manipulate the directivity of antennas.
利用坐标变换法设计方向性可控的高指向性天线。
Compared to microwave, millimeter-wave has good directivity, strong anti-jamming ability, and can penetrate plasma etc.
与微波相比，毫米波的指向性好、抗干扰能力强、能够很好地穿透等离子体等；
The directivity of emitter by changing the number and relative location of ultrasonic transducers are simulated.
通过改变换能器数目及之间的相对距离，模拟了超声发射阵的空间指向性。
The article studies a method of raising directional precision by amplitude shading in sensor arrays directivity design.
本文探讨了在传感器阵的指向性设计中利用振幅束控提高系统定向精度的一种方法。
moreover , taking on the rayleigh integral the far field acoustic pressure and the directivity formula is obtained.
并对其声场远场采用瑞利积分推导了一般表达式和指向性公式。
At the same value of frequency and size, the directivity of quadrate ring piston is sharper than that of quadrate piston.
在同一声波频率以及相同尺寸的情况下，方环活塞声源要比方形活塞声源的远场指向性更尖锐。
Dispersion Angle vs Frequency This graph displays the MR64B's excellent horizontal and vertical directivity control.
色散角随频率该图显示MR64B的良好的横向和纵向指向性控制。
Then they discovered that the directivity of the magnet.
后来又发现了磁石的指向性。
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。
The antenna received signals with no directivity.
那种天线可接受没有方向性的信号。
DENG Xiao-ping higher education thought has strategic, characteristic and so on directivity, openness and national characteristic.
邓小平高等教育思想具有战略性、方向性、开放性及民族性等特征。
In the long period range, the spectral acceleration of motions with fling step is generally larger than that with forward directivity.
而在长周期段，含滑冲效应地震动的谱加速度大于含破裂向前方向性效应的谱加速度值。
The oil seal has the directivity, cannot install instead.
油封有方向性，不能装反。
Comparing to other ranging method, the laser ranging has better directivity and the higher range precision, and it can ranges further.
激光测距与其他测距方法相比具有更好的方向性和更高的测距精度，且测程远，抗干扰能力强。
At the same time, it has good parameters of wide band, good directivity and stable phase center and so on.
同时，其具有较宽的工作带宽、良好的方向性和稳定的相位中心等性能参数。
The good "8" cosine vector directivity and frequency response curves are obtained, and the sensor's sensitivity reaches -184. 6dB at 1 KHz.
获得了较好的“8”字形矢量指向性和频响曲线，水声传感器的灵敏度在1KHz时达到-184.6dB。
In addition, another microphone was placed at h = 45 (0. 35, 0. 35, 0) to assess the noise directivity of the exit jet.
此外，在h=45度（0.35,0.35,0）处放置另一个麦克风，以评估出口射流的噪声方向性。
The directivity of two-dimensional wavelet transformation and its application in FMI image
二维小波变换的方向性及其在FMI图像处理中的应用
Additional sound transmission loss resulting from directivity in the vertical plane of a receptive array
接收基阵垂直指向性引起的附加声传播损失
Simulation of Vertical Directivity of Hydrophone Triplets Towed Line Sonar by the Optimal Array Processing
三元组拖线阵声纳垂直指向性最佳阵处理仿真
Numerical computation and experimental test of directivity pattern of low frequency flex-tensional transducer
低频弯张换能器指向性数值计算及实验测试
Research on the Directivity of the Audio Directional Transducer Array of Audio Beam Loudspeaker
声束扬声器的声频定向换能器阵列指向性研究
Simple Technique for Accurately Determining Coupler Directivity
精确确定定向耦合器方向性的简单方法
The research of directivity of the sound field through mechanism of laser-induced liquid breakdown
液体中光击穿所激发声场的方向性
Double frequency narrow directivity technology with single acoustic vector sensor
单矢量传感器倍频窄波束技术研究
The Synthesis of the Directivity Pattern to The Broadband Printed Dipole Array Antenna
宽带印刷振子天线阵方向图的综合
Analysis and experiment study on directivity of vector sensors located on complicated boundaries
复杂边界条件下矢量传感器的指向性分析及实验研究
On Influencing Factors of the Directivity of Phased Array Transmitter in Acoustic Log
相控线阵声波测井辐射器指向性影响因素研究
Acoustic Principle and Application of Super Directivity Microphone
超指向性传声器的声学原理及其应用
The Rayleigh Wave's Sound Pressure and Directivity Pattern in the Field for Rectangle Wafer in Ultrasonic Wave Probe
矩形晶片的楔形超声换能器瑞利表面波远场声压及指向性图案
The Application of Virtual-instrument in the Radar Directivity Pattern Measurement
虚拟仪器在雷达天线性能方向图测试中的应用
Methods of Moment on Monopole Antenna Directivity With Ground Reflection
考虑地面反射时单极天线方向性的矩量法分析
