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- 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。
- Radiated sound pressure of an infinite periodic ring-stiffened cylindrical shell in fluid field was studied by both theoretical and experimental method. 對流場(chǎng)中一無(wú)限長(cháng)周期環(huán)肋圓柱殼受激振動(dòng)的輻射聲壓進(jìn)行了理論和實(shí)驗研究。
- Ultra-low distortion at extreme sound pressure levels. 超低失真的極端聲壓級。
- Moreover, the sound pressure and velocity on the virtual boundaries can be get simultaneity by using this method, which cannot be done by conventional boundary element method. 同時(shí)采用文中的方法還可以同時(shí)得到聲場(chǎng)中非物面邊界上質(zhì)點(diǎn)的振動(dòng)速度和壓力，這是常規邊界元法無(wú)法做到的。
- INTRACRANIAL SOUND PRESSURE LEVELS DURING IMPULSSE NOISE EXPOSURE Saljo A. 在噪音刺激下顱內聲音壓力水平。
- The ways to stop bleeding include direct pressure method and indirect pressure method. 止血方法可分為直接壓法及間接壓法。
- Thermal pressure method is part of resin inlaying, for which thermosetting resin is widely used. 熱壓鑲嵌法屬于樹(shù)脂鑲嵌法，其中，采用熱固性樹(shù)脂又是非常普遍的。
- Tension method also can distinguish permeability of different concrete, but it has discreteness compared with water pressure method. 通過(guò)研究張力法下水在混凝土中的滲透發(fā)現:水在張力法下更容易滲透,張力法下的滲透系數比水壓法下大一個(gè)數量級。
- 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。
- Breakthrough pressure method was presented in order to accurately determine the plugging position of water shutoff agent in oil reservoir. 為了能更準確地預測堵劑在油藏中的封堵位置,提出了堵劑突破壓力法。
- 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。
- 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 dynamic surface tension of aqueous solution of alkyl glucoside(APG) C_(8/10)G_(1.31) and C_(12/14)G_(1.43) was studied by using maximum bubble pressure method. 采用最大泡壓法研究了表面活性劑烷基聚葡糖苷(APG或CiGj)C8/10G1.;31和C12/14G1
- 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。
- Based on static pressurizing method,the leakage and degassing rate of a dewar of 210 L was measured. 運用靜態(tài)升壓法對國內某廠(chǎng)家生產(chǎn)的210L杜瓦的漏放氣速率進(jìn)行測量;繪制了夾層壓力隨時(shí)間的變化曲線(xiàn);測得總漏放氣速率為2.;0×10-8Pa
- Presents the balance valve make-up water pressurization method used in substation reformation. 摘要介紹了在換熱站改造中采用的平衡閥補水定壓方式。
- 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。
