1·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。
2·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。
3·No obvious directivity occurs in the songs of black cicada.
黑蝉鸣声的波形结构无明显的方向性。
4·In fact, the two Stradivarius instruments showed respectively the highest and the lowest degrees of directivity in the sample.
事实上，这两个斯特拉迪瓦里的文书显示，分别是最高和最低程度的方向性的样本。
5·The antenna received signals with no directivity.
那种天线可接受没有方向性的信号。
1·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。
2·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；
3·Then they discovered that the directivity of the magnet.
后来又发现了磁石的指向性。
4·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。
5·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。