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- sound pressure difference 声压差
- Pressure difference after the dryer. 干燥器前后压差。
- Measurement of sound pressure level for sound sign. 海船声号器具的声压级测量。
- The even intensity and long duration of these murmurs reflect the large pressure difference across the orifice where the sound originates. 杂音的平均强度和长持续时间反映出声口压力差异很大。
- 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。
- Flow of gas or liquid due to a pressure difference is called viscous flow. 由于压力差引起的气体或液体流称为滞流。
- Install pressure difference display equipments with sound-light alarm. 安装压差显示装置,并有声光报警。
- INTRACRANIAL SOUND PRESSURE LEVELS DURING IMPULSSE NOISE EXPOSURE Saljo A. 在噪音刺激下颅内声音压力水平。
- Pressure differences are indicated on weather maps by isobars. 在气象图上气压差用等压线表示。
- The application of a pressure difference across an injector does not cause an immediate velocity response of the liquid propellant. 经过喷注器的压降发生变化时并不马上引起液体推进剂速度变化。
- 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。
- There should be pressure difference display device when there is a pressure gradient. 有压差梯度的区域无压差显示装置。
- 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。
- Calculate the pressure difference by subtracting the desired outlet pressure from the maximum inlet pressure. 通过从最大进口压力减去所需要的出口压力来计算压差。
- 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 average pressure difference of SBP in midlife and old folks group and DBP in old folks group all exceeded 5 mm Hg. 中老年组SBP及老年组DBP平均压差均大于5 mm Hg。
- 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。
- Find the number on the pressure difference line and note the outlet pressure index number. 找出压差线上的数字,并且注意出口压力指数。
- 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.