First of all, design of acoustic material.

So, it is important to do research on the acoustic material.

因此吸声材料和结构的研究对噪声控制具有重要意义。

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Acoustic material and heat-resisting heat-storing material is filled in the porous inner tube and the housing body.

在多孔内管和外壳体中间填充有吸音材料和耐热蓄热材料。

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To use ceramisite in acoustic material for underground tunnel

利用陶粒制备地铁吸音材料

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Acoustic measurement and analysis in Nanjing Subway Engineering Investigation

南京地铁工程勘察中声波测试与分析

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Study on the Calibration Technology of the Acoustic Measurement of Suspended Sediment Concentration

声学方法监测悬浮物浓度的定标技术研究

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Simulation of underwater acoustic measurement system cable interference voltage

水声测量系统信号线缆干扰电压的仿真计算

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On the acoustic measurement method of rock mass stresses

岩体地应力声波测试方法的探讨

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Acoustic measurement and spectral characteristic analysis of two kinds of pulse signal

两种脉搏信号的声学检测与谱特征分析

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Experimental Research on Reconstruction of Velocity Field in Furnace Using Acoustic Measurement

声波法重建炉膛速度场的实验研究

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A multi-line array shape measurement method based on acoustic measurement

一种基于声学测量的多线阵阵形监测方法

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Research on application of spectrum analysis in acoustic measurement of seabed sediments

海底沉积物声学测量中频谱分析方法应用研究

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On the Acoustic Power Radiated by an Electrical Machine

电机电磁噪声的辐射声功率

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Determination of acoustic power on acoustic radiation modes

基于声辐射模态确定声功率

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Research of Underwater Acoustic Power Amplifier and Broadband Matching Technique

水声功率放大器与宽带匹配技术研究

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Survey and Determination of Acoustic Power Level of Railway Regular Sound Source

铁路常见固定性声源声功率级的测定

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Finite Element Analysis of Acoustic Power Radiation by Electrical Machines

利用有限元法分析电机辐射的声功率

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Analysis and Research on acoustic power recovery in pulse tube refrigerator

声功回收型脉管制冷机的分析与研究

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Three points method for measuring acoustic power of high intensity sound sources

三点法测量强声源声功率

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Radiation Force Calculation and Acoustic Power Measurement of High Intensity Focused Ultrasound in Acoustic Field of an Artificial Abortion Equipment

高强度聚焦超声终止早孕机声场的辐射力计算与声功率测量

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This paper also studied the influence of acoustic power density, temperature and other parameters on the ultrasonic cleaning through experiment.

研究了声功率密度、温度等重要工艺参数对超声波清洗的影响规律。

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