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- Error Analysis Based on Sound Power Calculating via Geometrical Average Sound Pressure 基于几何平均声压的声强计算的误差分析
- Sound intensity's calculating error analysis of quadrupole sound source based on geometric average sound pressure 四极子声源基于几何平均声压的声强计算误差分析
- average sound pressure level 平均声压电平
- 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。
- It treats the weighted average sound velocity in different mediums as the average sound velocity in the structure,thus the natural frequency of the structure is calculated. 以声波在各层介质中传播时波速的加权平均值作为构筑物的平均声波波速,计算出结构自振频率。
- 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。
- Have set up the relation equation of porosity pervious concrete and its average sound absorption coefficient . This equation can evaluate the sound-absorbing ability of different porosity pervious concrete pavement. 经过对不同孔隙率透水性混凝土吸声系数的研究,建立了透水性混凝土孔隙率与平均吸声系数的关系方程,该方程可用于评估透水性混凝土铺装吸声降噪能力。
- 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。
- It relies on short-term average sound up, last Thursday has always run the Changyang entity, is still a strong feature of obvious, is expected to continue to move up the afternoon. 该股依托短期均线稳健上行,近日始终处于上周四的长阳实体中运行,强势特征依然明显,后市有望继续走高。
- 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。
- 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。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- average sound absorption coefficient 平均吸声系数,平均吸声率