sound coefficient 中文意思是什麼

sound coefficient 解釋
降低噪聲系數
  • 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...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. 2 the theoretical values of the second virial coefficient are precisely fitted into some simple expressions. according to one of them, a new temperature function for the quadratic terms in cubic equations was derived : the function is simple, general, without acentric factor, truly predictive, theoretically sound, and applicable to all the van der waals - type equations

    2將第二維里系數的理論值較精確地擬合為幾種簡單的表達式，並據此導出了立方型狀態方程中二次項溫度函數的新形式該式簡單、通用，不含偏心因子，具有真正的預測功能和堅實的理論基礎，原則上適用於所有vanderwaals型方程。
  2. Because this transducer not only has a firm structure and uses the longitudinal mechanic - electricity coupling coefficient of piezoelectric crystals, but also can be easily made, it has very good electricity - sound ability

    由於製作工藝簡單，結構堅固，且又利用壓電陶瓷的縱向機電耦合系數，因此具有良好的電聲性能。
  3. Acoustics. testing of architectural acoustics. determination of sound absorption coefficient and impedance in a tube

    聲學.駐波管法測定標準入射角聲阻抗和吸音率
  4. Sound damping coefficient

    聲阻尼系數
  5. According to the integral characteristic of pvdf film, two pvdf sensors are designed to measure adjoint coefficient of sound radiation mode in this paper. based on the theory of sound radiation and two - dimensional modal sensors equation, and taking a simply supported plate as example, we measure mode l, mode 2 and mode 3 adjoint coefficient of its sound radiation by the sensors

    本文是在聲輻射模態理論以及兩維分散式壓電傳感器方程的基礎上，利用pvdf獨特的積分特性，以簡支矩形板為例，設計了pvdf壓電薄膜傳感器用於測量簡支板第一、二、三階聲輻射模態伴隨系數。
  6. Code for measurement of sound - absorbing coefficient and specific acoustic inpedance of standing - wave

    駐波管法吸聲系數與聲阻抗率測量規范
  7. Measurement of sound - absorbing coefficient and sound - resistance rate by method of standing wave tubes

    駐波管法吸聲系數與聲阻抗率測量規范
  8. The result shows that average absorption coefficient and noise reduction coefficient separately equal to 0. 58 and 0. 60, and fine property of sound absorption at middle - low frequency

    結果表明材料的平均吸聲系數和降噪系數分別達0 . 58和0 . 60 ，且材料的中低頻吸聲性能優良。
  9. Based on the sound wave transferring theory of infinite elastic and viscoelastic materials with the method of transferring matrix, the formulas of transmission coefficient and the level of sound insulation are gained, which consider shearing strength in the rubber, and the sound insulation properties of compound structures are discussed in condition of oblique incidence

    摘要基於無限大彈性體和粘彈性體的波傳遞理論，採用傳遞矩陣的方法，對斜入射情況下的透射系數和隔聲量進行了理論推導，考慮了聲波在橡膠中傳播所產生的剪切力，並就單層復合結構的隔聲性能進行了詳細的研究，進而也分析了多層復合結構的隔聲性能。
  10. Lt is obvious that the decaying rule of average reverberation intensity is affected by scattering coefficient of sea floor, sound speed profile, inclination of bottom etc. the sea floor scattering function is the most importan factor to the intensity decaying rule

    結果表明：海底散射方向性指數因子、海水聲速梯度、海底傾斜角等對海洋混響平均強度的衰減皆有影響。海底散射方向性指數因子對其影響最大，即適當選取海底散射模型是淺海近程混響建模的首要因素。
  11. Radiation modes are dependent on the radiator ' s geometry shape and vibration frequency, but are not relative to the material characteristic and the border condition of the radiator. further more, the radiation efficiency of the radiation modes falls off very rapidly with the increase of modes order at low frequency. the adjoint coefficient of sound radiation modes is proportional to the corresponding sound radiation power

    聲輻射模態由輻射體的幾何形狀和振動頻率決定，與輻射體本身的材料特性以及邊界條件無關；特別是在中低頻率時，聲輻射模態對應的輻射效率隨模態階數的增加而迅速降低。
  12. Focusing on the problem of sound field of scattering due to the existence of tubes, the general mathematical model modeled according the condition of plant, and then the coefficient of sound scattering is resolved by using the method of inverse matrix, the functions of arbitrary configuration of tubes is got, the far field scattered pressure and near field scattered intensity of the unit of heat exchanger tubes is calculated, at last, the effect of soot cleaning due to the existence is analyzed

    論文根據爐內管束的實際情況，建立換熱器管束聲波散射的通用數學模型，利用迭加原理法求解模型中的待定散射作用系數，得出任意布置管束的散射聲場特性，並具體計算鍋爐換熱器管束單元聲波散射遠場聲壓分佈和近場壁面的聲強分佈，最後分析由於聲波的多重散射作用而對聲波吹灰的影響。
  13. The result of a discussion about the statistical distribution shows there are different distribution forms between the data errors and estimated parameters in non - linearity inversion. the precision of estimated bottom sound speed is well than the estimated bottom density. although there is a same data errors distribution in perturbative inversion, the distribution of each inverted eof coefficient is different

    統計誤差分佈的討論結果顯示：在非線性反演方法中，數據空間誤差分佈與參數空間誤差分佈不相同，這種匹配方法估計的海底聲速的準確性好於對密度估計的準確性；在擾動反演演算法中，相同的數據誤差分佈條件下，反演的eof各項系數誤差分佈不同。
  14. Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - method using standing wave ratio

    聲學.阻抗管中吸音率和阻抗的測定.駐波比率法
  15. Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - part 1 : method using standing wave ratio

    聲學.阻抗管中吸聲系數和阻抗測定.第1部分:駐波比率法
  16. The kernel in spheroid has a smaller sound absorption coefficient than in non - spheroid. the thickness of grain sample is an important factor effecting on the sound absorption coefficient

    糧食厚度也是影響其吸聲性能的一個重要因素，糧食厚度增加，吸收頻帶加寬，低頻吸聲系數增大，最大吸收峰個數增加，並向低頻方向移動。
  17. The change of sound velocity with pressure, dryness degree, void - fraction, and phase - transition coefficient are analyzed. some important conclusions are derived

    分析了兩相流體中音速隨壓力、干度、汽隙率、相變系數等的變化關系，並從中得出了一些重要的結論。
  18. Acoustics - sound scattering properties of surfaces - measurement of the random - incidence scattering coefficient in a reverberation room

    聲學.表面的聲音擴散特性.混響室中無規入射擴散系數的測量
  19. Sound reflection coefficient

    聲反射系數
  20. Acoustics - methods for measuring the longitudinal sound speed and attenuation coefficient of rubbers and plastics in the frequency range 1mhz to 10mhz

    聲學1 10mhz頻率范圍內橡膠和塑料縱波聲速與衰減系數的測量方法
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