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- Radiated sound pressure of an infinite periodic ring-stiffened cylindrical shell in fluid field was studied by both theoretical and experimental method. 对流场中一无限长周期环肋圆柱壳受激振动的辐射声压进行了理论和实验研究。
- Analytical Solution of Radiation Sound Pressure of Double Cylindrical Shells in Fluid Medium 双层柱壳在流场中辐射声场压力的解析解
- radiation sound pressure 辐射声压
- Measurement of sound pressure level for sound sign. 海船声号器具的声压级测量。
- The audible sound pressure range is from 0 dB to 120 dB. 听觉范围为0分贝到120分贝。
- Ultra-low distortion at extreme sound pressure levels. 超低失真的极端声压级。
- INTRACRANIAL SOUND PRESSURE LEVELS DURING IMPULSSE NOISE EXPOSURE Saljo A. 在噪音刺激下颅内声音压力水平。
- In this paper, the radiation pressure and directional formulation are calculated by use of Reily-integrate, The directivity of radiated sound field of quadrate ring piston is analyzed. 摘要利用瑞丽积分，计算了方环活塞声源远场的辐射声压分布以及指向性公式，并对辐射声压的远场指向性进行了分析；同时，与方形活塞声源的指向性作了对比。
- There is a remarkably wide range of frequencies and sound pressure levels over which the human ear can detect. 人类耳朵对声音频率和声压级的感应范围很广。
- With the increase of the SPL, the nodes of sound pressure move Periodically, and sound radi... 在声源产压级较低时，声辐射压分布几乎处处为零，随着声压级增加，节点处声辐射压幅值增加，颗粒稳定性增强。
- Usually, the problem is how to reduce the sound pressure level, either at source or on the transmission path. 通常噪声问题的解决办法就是在其声源处或是在其传播途中降低其声压水平。
- The SPL(Sound Pressure Lever) of flow-induced tones limits the required flow speed of aero-acoustic experiment. 为了在气流当中进行噪声测量,传声器上必须加装适当形式的鼻锥以降低传感器自噪声。
- A special ALC circuit handles very high sound pressure levels but without distortion. 采用特别ALC电路不用担心音量过大而失真.
- Each professor was chosen based upon his or her exposure to various sound pressure levels (SPL). 本试验利用音波的此项特性，对于砂土层滑动所产生之声音进行量测。
- The influence of the stiffeners has no clear trends and has no important influence on radiated sound power.The longitudinal ribs have more influence than the ring ribs on the sound radiation. 增加纵肋或环肋时对圆柱壳的固有频率和辐射声功率的影响较为复杂和不显著,增加纵肋对减少结构声辐射的作用要大于对结构增加环肋对减少结构声辐射的作用。
- For maximum sound pressure levels large sound reinforcement systems frequently use a separate compressor on each output of the electronic crossover(s). 对于最大的声压电平，巨大的声音增强系统，通常在每一个电子分频器的输出后面拉一个独立的压限器。
- Sound Pressure Level (SPL) Sound pressure level is a measurement of the pressure fluctuations of a sound wave as it propagates through the air. 声压级别声压级别是表示在空气中传播的声波的起伏压。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- An innovative implementation of the skin concept for the reduction of the radiated sound power from a vibrating structure is proposed. 摘要 本文的目的为研究在有限平板之双曲线热传导的正、逆算问题受表面辐射的影响。
