多自由度波导抑振器具有吸收低频入射声波的功能。
The multiple degrees of freedom (MDOF) waveguide vibration suppressor has the capacity to absorb low frequency sound.
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.
火苗的波峰和波谷数目随入射声波的频率改变而有规律的变化。
The number of wave crests and wave troughs of the flame varies regularly with the change of frequences of incoming waves.
因此，这两种不同入射声波的声波反射压力的变化既有不同，又有着相似之处。
The reflected pressure of the fluid is similar between the plane acoustic wave and the point source acoustic wave.
研究了多层高分子复合结构在斜入射声波作用下，各层材料动态力学性能参数和几何参数变化对其吸声性能的影响规律。
The aim is to study the effects of dynamic mechanics properties and geometrical parameters of each layer material on the sound absorption properties of the multilayered polymer composites.
混响室是声学专业的实验室用房，它在测量声波无规入射时材料的吸声系数和测量噪声源的声功率级中得到了广泛应用。
In the measurement of sound absorption coefficient in random incidence and determination of sound power levels of noise sources, the reverberation room is used very extensively.
推导了具有工程背景的弱正交异性材料的超声波斜入射应力-声关系。
The stress acoustic relationship for off axis ultrasonic wave is derived in slightly orthotropic material.
以时差法为例，分析了超声波探头中超声射线入射角及振荡频率对测量精度的影响，给出了探头的选择原则。
This paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy. The option principle of ultrasonic sensor is presented.
通过对声波入射的分析，同时结合流固耦合条件，建立出双层隔声窗传声损失的数学模型，该模型能够同时包括隔声窗的优化设计参数。
Based on the analysis of sound incidence and fluid-structure Coupled condition, a mathematic model of double-proof window is established, and this model involves the design parameters.
文中以时差法为例，分析了超声波换能器中超声射线入射角及振荡频率对测量精度的影响，给出了换能器的选择原则。
The paper analyzes the influence of incidence and oscillation frequency of ultrasonic sensor on measuring accuracy and the choose principle of ultrasonic sensor is presented.
当声波入射到离心玻璃棉上时，声波能顺着孔隙进入材料内部，引起空隙中空气分子的振动。
When sound waves on the incident to the centrifugal glass cotton, sound waves can follow the material internal, cause pore voids the vibration of air molecules.
当声波入射到离心玻璃棉上时，声波能顺着孔隙进入材料内部，引起空隙中空气分子的振动。
When sound waves transmits centrifugal glass cotton, sound waves can follow pore into material interior, cause voids air molecules vibration.
研究了从端面入射超声波对轴类工件关键应力区域的原位检测方法。
A testing method which is used for detecting the spindle's vital region of the stresses with incident wave from the end face of spindle has been researched.
以复合绝缘子为测量样品，为提高测量横波的精度，根据超声波在边界上的波型转换条件，使用常规纵波探头对由掠入射纵波产生的横波进行测量。
Taking the composite insulator as a measurement sample, knowing the waveform conversion condition on the boundary, only a conventional longitudinal testing probe is needed to measure...
以复合绝缘子为测量样品，为提高测量横波的精度，根据超声波在边界上的波型转换条件，使用常规纵波探头对由掠入射纵波产生的横波进行测量。
Taking the composite insulator as a measurement sample, knowing the waveform conversion condition on the boundary, only a conventional longitudinal testing probe is needed to measure...
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