propagation of sound 中文意思是什麼

propagation of sound 解釋
聲傳播
  • propagation : 持續培養
  • of : OF ＝Old French 古法語。
  • sound : adj 1 健全的；強壯的，正常的；完好的，無疵的，沒有腐爛的（船、牙齒等）。2 正確的；正當的，合法的...
  1. In acoustics he studied the propagation of sound and musical consonance and dissonance.

    在聲學中，他研究了聲的傳播和音樂的和諧與不和諧。
  2. The disturbance is sound wave, conforming to the laws of acoustic propagation in solids.

    這種擾動是種聲波，它遵從在固體中聲波的傳播規律。
  3. Atmospheric acoustics is the study of propagation of sound waves in the atmosphere. listed in it is the study of infra - sonics, which focuses on inaudible, low - frequency sounds

    研究聲音在大氣中傳播特性的科學稱為大氣聲學，當中的次聲學便是專注於人耳無法聽到的低頻聲音。
  4. D. j. mead. free wave propagation in periodically supported infinite beams. journal of sound and vibration 11, 1970 : 181 - 197

    陳正翔，江松青，張維衡.無限長輸液管中結構振動波的傳播.華中理工大學學報， 1997 （ 11 ）
  5. This paper is based on the theory of environmental science, systematology and noise control engineering. noise control system and comprehensive harness of fan room have been researched. by the investigate, and measure of fan room noise. sound production principle, acoustics characteristic and the law of attenuation propagation have been analyzed. thus, the sound field model of fan roo has been put for put forward ward

    本文以環境科學、系統科學和噪聲控制學為理論基礎，對風機房噪聲控制系統及其綜合治理進行研究，通過對風機房噪聲污染調查監測，分析其發生機理、聲學特性和傳播過程衰減規律。
  6. In 1981 he showed that there is a close analogy between the propagation of sound in a moving fluid and that of light in a curved spacetime

    1981年，他證明了聲波在流體中的傳播，和光在彎曲空間中的傳播有極為接近的類比。
  7. The sparker was originally developed for fundamental studies of underwater sound propagation and of subbottom geology.

    火花發生器原來是為了進行關於水下聲波傳播及海底地質的基礎性研究而製造的。
  8. Therefore, the fluid sound propagation of the leakage pipes is studied, according to the acoustic impedance characters

    文中從聲學的角度出發，分析了漏損點的聲阻抗特性，並對漏損管道內流體的聲傳播進行了研究。
  9. In this paper the train running noise level has been predicted with the theory of point sound source. the sound exposure level of a train set pass, equivalent continuous sound level and maximum sound level of a train set pass has been taken as estimate values, and some kinds of affixation attenuation on the course of noise propagation is considered, then the corresponding visual software has been developed. these make it convenient and precise to predict the noise level

    本文從點聲源的理論出發，對列車運行噪聲進行預測計算，採用一列車通過時的單發暴露聲級、時間特性的最大聲壓級和一定時間內的等效聲級等作為噪聲評價量，並考慮了噪聲傳播過程中的各種附加衰減，編制了相應的可視化軟體，使噪聲預測計算方便、準確。
  10. The analytical mode is based on the theory of sound propagation in layered media. the concept of equivalent parameters is established. the absorption of sound energy by damping layer ' s is represented by use of complex sound impedance

    解析模型以分層介質中的波動理論為基礎，建立了等效參數的概念，並運用聲阻抗的復數表示法把阻尼層對介質層聲能吸收的影響都考慮進去，通過比較敷設消聲覆蓋層前後多層傳遞損失的差異來獲得消聲層的效率。
  11. With acoustic propagation being mostly forbidden, the findings of the sonic band gaps can potentially be used to design sound insulation systems

    當聲波之波傳被阻絕于聲子晶體之外時，這樣的聲子晶體設計將可用來當作聲音的頻障設計。
  12. At the same time this paper calculates the effect of train velocity on noise propagation, when mach number is 0. 1, sound velocity less effects on noise level ; when mach number is 0. 4, the difference value is about 2db whether to consider the sound velocity. so when the train velocity is not very high, the effect of sound velocity may not be considered

    本文同時計算了列車運行速度對噪聲傳播的影響，當馬赫數為0 . 1時，聲音的傳播速度對聲級的影響是很小的，當馬赫數為0 . 4時，考慮聲速與不考慮聲速影響的最大值的差值大約為2db左右，因此在列車速度不是很高的情況下可以不考慮聲速的影響。
  13. Natural stone test methods - determination of sound speed propagation

    天然石料試驗方法.聲速傳播的測定
  14. Natural stone test methods - determination of sound speed propagation ; german version en 14579 : 2004

    天然石料試驗方法.聲音速度傳播的測定
  15. The rass emits sound waves into the air and determines the temperature by tracking the propagation of these waves using radio

    聲波雷達向空中發出聲波，然後以無線電追蹤聲波的傳送速度，從而確定上空的溫度。
  16. Characteristic of sound propagation in ducts with varying cross - section

    變截面導管聲傳輸特性研究
  17. Propagation of sound

    聲音的傳播
  18. Acoustics - attenuation of sound during propagation outdoors - part 2 : general method of calculation

    聲學戶外聲傳播的衰減第2部分:一般計算方法
  19. Acoustics - attenuation of sound during propagation outdoors - part 2 : general method of calculation iso 9613 - 2 : 1996

    聲學.室外傳播過程中聲的衰減.第2部分:一般計算方法
  20. Acoustics - attenuation of sound during propagation outdoors - part 1 : calculation of the absorption of sound by the atmosphere

    聲學戶外聲傳播衰減第1部分:大氣聲吸收的計算
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