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- Error Analysis Based on Sound Power Calculating via Geometrical Average Sound Pressure 基于幾何平均聲壓的聲強計算的誤差分析
- Sound intensity's calculating error analysis of quadrupole sound source based on geometric average sound pressure 四極子聲源基于幾何平均聲壓的聲強計算誤差分析
- average sound pressure level 平均聲壓電平
- Measurement of sound pressure level for sound sign. 海船聲號器具的聲壓級測量。
- The audible sound pressure range is from 0 dB to 120 dB. 聽(tīng)覺(jué)范圍為0分貝到120分貝。
- Ultra-low distortion at extreme sound pressure levels. 超低失真的極端聲壓級。
- INTRACRANIAL SOUND PRESSURE LEVELS DURING IMPULSSE NOISE EXPOSURE Saljo A. 在噪音刺激下顱內聲音壓力水平。
- 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. 以聲波在各層介質(zhì)中傳播時(shí)波速的加權平均值作為構筑物的平均聲波波速，計算出結構自振頻率。
- There is a remarkably wide range of frequencies and sound pressure levels over which the human ear can detect. 人類(lèi)耳朵對聲音頻率和聲壓級的感應范圍很廣。
- 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. 經(jīng)過(guò)對不同孔隙率透水性混凝土吸聲系數的研究,建立了透水性混凝土孔隙率與平均吸聲系數的關(guān)系方程,該方程可用于評估透水性混凝土鋪裝吸聲降噪能力。
- With the increase of the SPL, the nodes of sound pressure move Periodically, and sound radi... 在聲源產(chǎn)壓級較低時(shí)，聲輻射壓分布幾乎處處為零，隨著(zhù)聲壓級增加，節點(diǎn)處聲輻射壓幅值增加，顆粒穩定性增強。
- 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. 該股依托短期均線(xiàn)穩健上行，近日始終處于上周四的長(cháng)陽(yáng)實(shí)體中運行，強勢特征依然明顯，后市有望繼續走高。
- Usually, the problem is how to reduce the sound pressure level, either at source or on the transmission path. 通常噪聲問(wèn)題的解決辦法就是在其聲源處或是在其傳播途中降低其聲壓水平。
- The SPL(Sound Pressure Lever) of flow-induced tones limits the required flow speed of aero-acoustic experiment. 為了在氣流當中進(jìn)行噪聲測量,傳聲器上必須加裝適當形式的鼻錐以降低傳感器自噪聲。
- A special ALC circuit handles very high sound pressure levels but without distortion. 采用特別ALC電路不用擔心音量過(guò)大而失真.
- Each professor was chosen based upon his or her exposure to various sound pressure levels (SPL). 本試驗利用音波的此項特性，對于砂土層滑動(dòng)所產(chǎn)生之聲音進(jìn)行量測。
- For maximum sound pressure levels large sound reinforcement systems frequently use a separate compressor on each output of the electronic crossover(s). 對于最大的聲壓電平，巨大的聲音增強系統，通常在每一個(gè)電子分頻器的輸出后面拉一個(gè)獨立的壓限器。
- Sound Pressure Level (SPL) Sound pressure level is a measurement of the pressure fluctuations of a sound wave as it propagates through the air. 聲壓級別聲壓級別是表示在空氣中傳播的聲波的起伏壓。
- The average age of the boys in this class is fifteen. 本班男生的平均年齡是十五歲。
- average sound absorption coefficient 平均吸聲系數,平均吸聲率
