directivity
英
美
n. 方向性；指向性
英英释义
noun
- the property of a microphone or antenna of being more sensitive in one direction than in another
- the antenna received signals with no directivity
- the quality of being directive
双语例句
- 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。 - 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。 - 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 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。 - 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。 - 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 - 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。 - 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 - 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。 - 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。