sound standing wave 中文意思是什麼

sound standing wave 解釋
聲駐波
  • 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...
  • standing : adj 1 直立的；站著的。2 【林業】未伐的。3 【農業】尚未收割的。4 停佇的；停滯的，不再運轉的，不流...
  • wave : n 〈美海軍〉女志願軍人〈見 WAVES 條〉。n 1 波浪；碎浪； 〈the wave（s）〉 〈詩〉海。2 波動；波狀...
  1. 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
  2. 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
  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 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。
  6. 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
  7. 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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