查询词典 acoustic wave

In order to ensure the accuracy and reliability of NDT,theories about acoustic wave scattering from rough surfaces were studied.

为保证超声无损评价检测的准确性和可靠性，本文研究了粗糙界面的声波散射理论。

From the experiment of acoustic wave collect, we approve the hardware is reasonable and the analyze method is proper.

最后通过实验证明了硬件的合理性，并验证了所采用声波分析方法的可行性。

The company has two function design and the composition of imported equipment and integrated circuit production line of Surface Acoustic Wave Devices.

公司拥有功能设计部和二条进口设备组成的集成电路与声表面波器件生产线。

The surface acoustic wave can disperse when the material properties of near-surface change.

材料近表面性质的变化能够导致在其中传播的声表面波发生色散。

An expression for acoustic wave amplitude as a function of modulation frequency and relaxation time has been derived.

推导了光声信号振幅与入射光调制频率和样品分子振动－平动弛豫时间的函数关系。

Complexity is a main shortcoming for designing surface acoustic wave filter. A new method is adopted.

传统方法设计声表面波滤波器的主要缺点是设计过程复杂。

The company has two functional design of the imported equipment and components of integrated circuits and Surface Acoustic Wave device production lines.

公司拥有功能设计部和二条进口设备组成的集成电路与声表面波器件生产线。

Porosity logging methods examining gas reservoirs of sandstone and argillaceous sandstone through acoustic wave and density are effectively used in coal beds.

煤田中在煤层附近有煤层气砂岩储层、泥质砂岩储层的存在，声波、密度两种孔隙度测井是进行孔隙度探测的有效方法。

To understand the performance of DOA estimation using vector hydrophone array in a reflecting boundary, based on the reflecting model of plane acoustic wave, the improved Bartlett and Capon spatial spectrum are presented, and then the general frame is set up.

为了了解复杂分界面上矢量水听器阵列的定向性能，根据分界面上平面波的反射模型，提出了改进的Bartlett和Capon空间谱，建立了统一框架，并且在绝对硬边界典型界面下，分析了基于矢量水听器阵列的定向性能，给出了具体算例。

Considering the mechanical and electrical boundary conditions of AlN/GaN structures, determinantal equation which is used to solve the phase velocity of surface acoustic wave is given from the basic principle of matrix methods.

从矩阵方法的基本原理出发，结合AlN/GaN结构的机械和电学边界条件，推导出用于求解声表面波在AlN/GaN结构中的相速的行列式方程。

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。