acoustical measurements 中文意思是什麼
acoustical measurements
解釋
聲學測量- acoustical : adj. 1. 聽覺的；聲學的。2. 助聽的；傳音的。3. 原聲的，不經過電子設備傳聲的。adv. -tically 在聽覺上；在聲學上。
- measurements : 測量,測量方法,測量結果
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Preferred frequencies, frequency levels, and band numbers for acoustical measurements
聲學測量的優先選擇頻率頻率級和頻帶數 -
The paper produces noise reduction measurements and major frequency coverage that is 200 ~ 2khz to be used in selection of acoustical absorption and sound insulation materials. the measurement produces self - contained data to design lower noise railway vehicles in the future
本次測試的車輛車內噪聲主頻帶為20 2khz ，可依據此頻段進行新型車的設計和車體內部隔聲吸聲材料的選擇。 -
The acoustical environment in pingtan performing halls is presented by measurements of two typical examples in shanghai
摘要通過對上海兩個典型的評彈書場進行的現場聲學參量測試，分析了當前評彈演出環境的現狀。 -
The effects of observing scale on the measurements of acoustical velocity were studied by ray theory and equivalent medium theory
分析了聲波頻率影響傳播速度的機理，給出了不同溫度不同壓力條件下聲波速度隨頻率變化關系的實例。
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