acoustic mechanism 中文意思是什麼
acoustic mechanism
解釋
發聲機制-
Psittacula agapornis ), oscine passenon ( emberiza rutila ) and the vocalizations of sub - oscine passerine ( melopsittacus undulates, psittacula agapornis ) after sectioning nxiits were recorded by sharp gf - 6060 recorder. cooledit2000, an acoustic analyzing software, was used to produce the original wave and it ' s expanded time windows, sonograms, spectrums and power static histograms. to distinguish the acoustic differences of their natural vocal and to find the changes of sub - oscine passerine ' s song after sectioning nxiits, the above results is acoustically analyzed and compared, expecting to provide some advantage to further explaining the mechanism of vocal production
本實驗以非鳴禽（家鴿、家雞） ，亞鳴禽（虎皮鸚鵡、牡丹鸚鵡）以及鳴禽（栗? ）為實驗材料，記錄其正常叫聲以及亞鳴禽斷nxiits后的叫聲，用cooledit2000聲音處理軟體制出原始信號及其展開圖，聲圖，頻率譜圖以及能量統計分布圖，並對所得結果進行聲學比較分析，以期得到鳴禽、亞鳴禽及非鳴禽叫聲在聲學特性上的差異，以及亞鳴禽在斷神經后叫聲的聲學變化，旨在為進一步解釋其發聲機制提供幫助。 -
A study on acoustic emission mechanism in engine tribological process for piston - liner
缸套磨損過程聲發射機理研究 -
It is a challenge project for us to predict the acoustic radiation of high - speed mechanism, and try to depress it effectively, which is also one of the key problems to solve in the design of mechanical products, aeronautics & astronautics products, and martial products
對高速機構進行準確的噪聲輻射性能分析，有效的抑制機構噪聲輻射，是我們必須面對的一個重要研究課題，這也是機械、航空航天及軍事工業等領域設計良好產品所必須解決的關鍵問題之一。 -
It is a challenge project for us to predict the acoustic radiation of high - speed mechanism, and try to depress it effectively. which is also one of the key problems to solve in the design of mechanical products, aeronautics and astronautics products, and martial products
如何對高速機構進行準確的噪聲輻射預報分析，改善機構的動態特性，有效的抑制機構彈性振動引起的噪聲輻射，是我們必須面對的一個重要研究課題，這是在機械、航空航天及軍事工業等領域設計良好產品所必須解決的關鍵問題之一。 -
With the wave number analysis of the structural vibration of flexible mechanism, the relationship between structural vibration and structural acoustic radiation are studied
通過對彈性機構振動波數譜分析，得出了機構振動與聲輻射之間的關系。 -
The progress of laser ultrasonics has been discussed especially for the laser - generated surface acoustic wave. the transform process of energy from light to ultrasonic has been analyzed. the generation mechanism of laser - generated surface acoustic wave has been discussed in detail excluding thermo - elastic mode and illumination mode
介紹了激光超聲領域的研究進展，分析了光致超聲過程中，能量從光能到聲能的轉換，歸納了用激光激發聲表面波的機理，討論了兩種主要的模型：熱彈模型和融蝕模型。 -
At first, the dynamic response of the mechanism can be measured with the multifunction testing bed, which is designed by ourselves. then the dynamic response can be taken as the boundary conditions, and the acoustic analysis will be carried out with the help of acoustic analysis software - - - - - - sysnoise. due to the high - reliability of sysnoise, the results can be regarded as the experimental results
在目前實驗條件尚不能實現機構聲輻射性能測定實驗的情況下，採用實驗與模擬分析相結合的方法，在自搭的彈性連桿機構多功能實驗臺上通過實驗測得機構動態響應的結果，然後利用專門的聲學分析軟體sysnoise進行聲輻射西北工業大學博士學位論文性能模擬實驗分析，可以將其視為實驗結果。 -
Chapter iv investigates the mechanism of acoustic resonance, its effects and its characteristics. finally all kinds of methods to eliminate acoustic resonance are reviewed
論文第四章從物理機理出發講述了聲諧振產生的原因，聲諧振的危害及表現特性，最後對目前用於解決聲諧振現象的各種對策進行了總結。 -
The active structural acoustic control of flexible mechanism is discussed
對彈性機構聲輻射主動控制方法進行了討論。 -
For the mechanism of the phenomenon of " local resonance " in a compound ultrasonic vibration system, and explanation is proposed, based on the well - known theory of production and propagation of acoustic wave in a rod or shell
摘要對超聲復合振動系統中的「局部共振」現象，基於熟知的棒或管中聲波產生和傳播的理論，提出一種機理解釋。
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