sound-absorption coefficient 中文意思是什麼

sound-absorption coefficient 解釋
吸音系數
  • 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...
  • absorption : n. 1. 吸收，合併。2. 專心，一心不亂，熱中 （in）。3. 〈口語〉飲食。
  • 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. 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
  2. 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。
  3. 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
  4. 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
  5. 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。
  6. The sound absorption coefficient of the material was tested by standing wave tube method

    採用駐波管法測試材料的吸聲系數。
  7. These are not really loads but indicate surfaces that absorb sound. specify the degree of sound absorption as the material property mu ( boundary admittance or absorption coefficient )

    也就是說它的作用是使得邊界吸聲材料的吸聲特性得以發揮。如果是0 ，就是不發生吸聲現象。相反，是1 ，就是說明是吸聲材料的吸聲特性完全發揮。
  8. Acoustics - determination of sound absorption coefficient and impedance in impedances tubes - method using standing wave ratio

    聲學.阻抗管中吸聲系數和阻抗的測定.使用駐波比的方法
  9. Average sound absorption coefficient

    平均吸聲系數
  10. Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - transfer - function method

    聲學.阻抗管中吸聲系數和阻抗的測定.傳遞函數法
  11. Acoustics - determination of sound absorption coefficient and impedance in impedance tubes part 2 : transfer function method

    聲學阻抗管中吸聲系數和聲阻抗的測量第2部分:傳遞函數法
  12. Acoustics - determination of sound absorption coefficient and impedance in impedance tubes - part 2 : transfer - function method

    聲學.阻抗管中吸聲系數和阻抗測定.第2部分:傳遞函數法
  13. Reverberation room is the special test room that is used in acoustics, in the measurement of sound absorption coefficient in random incidence and determination of sound power levels of noise sources, the reverberation room is used very extensively

    摘要混響室是聲學專業的實驗室用房，它在測量聲波無規入射時材料的吸聲系數和測量噪聲源的聲功率級中得到了廣泛應用。
  14. These researches provide us a basis for forecasting the pests in grain in earlier stage, accurately utilizing pesticides, improving the efficiency of prevention and reducing the loss of stored grain. the sound absorption properties of various types and thickness of grain are measured by means of the standing wave tube technique. the following conclusions can be drawn : for the same thickness the larger grains has a smaller sound absorption coefficient than the smaller grains

    為了有效地研究儲糧害蟲所產生聲信號在各種糧食中的傳播特性，本文採用駐波管法，對十一種不同種類糧食在不同堆積厚度情況下的吸聲性能進行了實驗研究，糧食吸聲特性與其顆粒的大小、形狀、排列方式及糧食堆積厚度等有關，存在一定的規律，得出如下結論：同一厚度下，顆粒大的糧食較顆粒小的吸聲性能差，顆粒由大到小，吸聲系數峰值頻率向低頻方向移動；球形顆粒糧食較長形顆粒吸聲性能差。
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