查询词典 directivity

This dissertation presents the research and applications of microstrip coupler with high directivity.

本论文主要在研究高指向性微带结构及其应用。

In this system, the different characteristic and directivity of the different frequencies audio signals while propagating in the air are tested and analyzed.

利用该系统对不同频率声频信号在传输过程中的变化特征及其指向性进行了实验研究和对比分析。

The directivity responses of the speaker with and without the reflector are compared in simulation and verified with measurement.

文章模拟比较了扬声器加与不加反射器的指向性响应，并在消声室里进行实验验证。

Several methods of sharp a narrow beamwidth is presented and used to form a narrow directivity.

文章还提出了多种矢量水听器指向性锐化的方法，通过这些方法在低频形成恒定束宽窄指向性。

Yu: I believe that the directivity and the clues of one person, if further improved, can be felt by others.

于： 我认为自己的符号指向和线索完善起来，别人会感受得到。

In this paper, a closed chamber technique for measuring thecomplex free field sensitivity and directivity patterns of line array is described.

本文提出了一种在密闭管中测量线阵的自由场复数灵敏度和指向性图的方法。

concept of scientific development ; orientation of achievements ; directivity of achievements

牢固树立科学发展观，事关中国特色社会主义事业的长远发展，事关中华民族的伟大复兴。树立科学发展观

Simulation results show that this antenna can broaden the practical bandwidth for both higher directivity and impedance matching.

仿真结果显示这种改进增宽了此类天线兼顾高定向性和阻抗匹配的实用频带。

The results show that the gain and directivity performance have bothbeen improved when using an antenna array.

分析结果表明，这两种天线布成阵列后其增益都得到了明显的改善，方向性得到了增强。

In this paper, some qualitative analyses are carried out to study the characteristics of rupture process, such as rupture directivity and hanging wall effect.

本文对此做了一些定性的分析，认为高烈度区的分布与震源机制和破裂过程存在一定的相关性，并且在近断层地区很可能存在着较为显著的方向性效应和上盘效应。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。