具有垂直方向指向性的接收基阵对入射声波有方向加权效应。
The receptive array with directivity in the vertical plane has weight effect on the incident wave.
全指向性的角度随着气球尺寸增大而改善，同时也改善了其中频响应。
The degree of omnidirectionality improves with balloon size and for midrange frequencies.
分析结果表明固定四角薄型平板的振动是不规则的，在远声场振动辐射是无指向性的。
The results indicate that the vibration of thin flat plane loudspeaker with four corners fixed is anomalistic and the vibration radiation at far sound field doesn't have any directionality.
态度也是有明确的指向性的，能够影响一个人的行为、一个群体的理念，并且产生共鸣。
Also, attitude is explicitly orientated, affecting the personal behavior as well as the collective concept so as to introduce resonance.
根据基本声学理论，分析具有单极子、中间和偶极子三种指向性的有限长线声源的几何发散损失特性。
Based on the theory of acoustics, this paper analyzes the character of geometrical spreading loss of finite line sound source on three types of directivity-monopole, intermediate pole and dipole.
一种新颖的声束扬声器是捏造的利用超声波在空气中的非线性传播效应，产生声音的高指向性的声音。
A novel audio beam loudspeaker is fabricated by utilizing the nonlinear propagation effects of ultrasonic in the air to generate audible high directivity sound.
本文介绍了一种单向性二元阵，探讨了其在基阵小型化中应用的可能性，分析了影响这种阵单指向性的主要因素。
This paper presents a kind of two-element array, discusses its possibility of being used for array miniaturization and analyses the main factors for influencing its unilateral directivity.
二极管泵浦固体激光器（DPL）输出光束的方向在某个微小范围内存在随机变化，这种光束指向性的波动在某种程度上严重制约了DPL的应用。
The output beam of diode pumped solid-state laser(DPL) has minute random variation in direction, which results in the restrictions on the appliance of DPL.
地方性广告的CPM（千人成本，指的是广告投放过程中，听到或者看到某广告的每一人平均分担到多少广告成本）明显比国家性广告要高出很多，因为他们的目标指向性更加明确。
The CPM rates for local advertising campaigns are typically substantially higher than national campaigns because of their more targeted nature.
艺术品的使用价值与一般商品的使用价值相比，具有审美指向性、自然持久性和多重消费性等特征。
Use value of art and the general value of goods, compared with a directional aesthetic, natural durability and multiple consumer and other features.
推导出了此类换能器的远场指向性和近场声压的表达式。
The eXpression of directivity of far field and near field was derived.
他们虽然存在着差异性，但其最初的指向性是一致的。
There are difference between them but the direction of beginning are identical.
实践思维是指向性非常明确、立足现实问题的分析与解决的思维。
The practice thought is the highly pertinent thought that based upon analyzing and solving the problems of realism.
本文论述了这种带有角扩展的所谓广义指向性信号的基阵处理，并就这种信号模型在能量意义上实现了信号匹配。
This paper puts the emphasis upon the array processing of the angular-spread signal which is called the generalized directional signal and aims to match this signal model in the energy sense.
声频定向扬声器是利用参量阵原理，产生高指向性声频信号的新一代扬声器。
Audio directional loudspeaker is a novel loudspeaker which can generate an audio signal with high directivity by utilizing the parametric array principle.
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；
The establishment question situation, can spiritedly cause the classroom, the knowledge simple to be easy to understand, its intense practice directivity is extremely obvious.
警察的力量锻炼方法具有较强的指向性特征。
The police's strength exercise method has stronger directional characteristics.
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。
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.
小指的是物理维度和其辐射的声波相比很小，或者其外形不会和该点声源指向性响应发生干扰。
"Small" means that the physical dimensions are small compared to the wavelength being radiated or that the shapes do not interfere with the polar response of the point source.
摘要磁罗经是船舶装备的主要指向性航海仪器之一，磁罗经自差的大小将直接影响船舶的航行安全。
Magnetic compass is one of directional navigation instrument in ship fitting, the deviation of magnetic compass will influence the navigational safety of ship.
它是智能天线指向性发射与接收的重要的技术基础。
It is an important support of smart antenna directional transmitting and receiving technology.
推荐铁路列车运行噪声几何发散损失计算采用偶极子指向性特性的理论计算公式或简化公式。
It recommends that the calculation of geometrical spreading loss of running trains noise adopt the theories calculation formula or the simplified formula of directional characteristic of dipole.
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。
The article studies a method of raising directional precision by amplitude shading in sensor arrays directivity design.
后来又发现了磁石的指向性。
读者主体具有阅读目的的指向性、阅读的直接性、接受的功用性等阅读特点。
The main body of readers has some characteristics such as directionality, directness and practicability.
传声器的指向性对声场方向性分布的测量有很大影响。
The directional characteristic of microphone is an important factor in the measurement of directional distribution of sound field.
本文讨论比较一般的指向性辐射器在分层介质中的声场，并将指向性概念应用于简正波计算。
In this paper, the sound field of a more general directional radiator in a stratified medium is treated, and the concept of directivity is applied to calculation of the normal modes.
本文讨论比较一般的指向性辐射器在分层介质中的声场，并将指向性概念应用于简正波计算。
In this paper, the sound field of a more general directional radiator in a stratified medium is treated, and the concept of directivity is applied to calculation of the normal modes.
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