noise sources 中文意思是什麼

noise sources 解釋
噪聲源
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  • sources : 世界通訊
  1. Based on the lucubration of adsl ' s transmission characters, the author concluded the main noise sources on the loop and their influences to the adsl ' s transmission performance

    本文作者在深入了解adsl傳輸特點的基礎上，總結了線路上主要噪聲源的特點及其對adsl傳輸性能的影響。
  2. Acoustics - determination of sound power levels of noise sources - engineering methods for small, movable sources in reverberant fields - methods for special reverberation test rooms

    聲學.噪聲源的聲功率級測定.在混響場中對可移動聲源的工程測量方法.用專用混響試驗室的測量方法
  3. Acoustics - determination of sound power levels of noise sources - engineering methods for small, movable sources in reverberant fields - comparison for hard - walled test rooms

    聲學.噪聲源聲功率級的測定.在混響聲場中小聲源和移動聲源的工程測量方法.第1部分:硬墻試驗室的比較分析法
  4. Acoustics - determination of sound power levels of noise sources - engineering methods for small, movable sources in reverberant fields - part 1 : comparison method for hard - walled test rooms

    聲學.測定噪聲源的聲功率級.混響場內小型可移動聲源的工程法.第1部分:硬壁試驗室中的比較法
  5. Acoustics - determination of sound power levels of noise sources - engineering methods for small, movable sources in reverberant fields - part 2 : methods for special reverberation test rooms

    聲學.聲壓法測定噪聲源聲功率級.混響聲場中小型可移動聲源的工程檢測法.第2部分:專用混響試驗室法
  6. Acoustics. determination of sound power levels of noise sources. engineering methods for small, movable sources in reverberant fields. part 1 : comparison method for hard - walled test rooms

    聲學.噪聲源聲強級的測定.混響聲場中小聲源和移動聲源的工程測量方法.第1部分:硬墻試驗室的比較分析法
  7. Acoustics - determination of sound power levels of noise sources - using sound pressure - engineering metheds for small, movable sources in reverberant fields - part 2 : methods for special reverberation test rooms

    聲學聲壓法測定噪聲源聲功率級混響場中小型可移動聲源工程法第2部分:專用混響測試室法
  8. Acoustics - determination of sound power levels of noise sources - precision methods for anechoic and semi - anechoic rooms

    聲學噪聲源聲功率級的測定消聲室和半消聲室精密法
  9. Precision methods for the determination of sound power levels of noise sources in anechoic and hemi - anechoic rooms

    在無回聲和半無回聲的室內精確測定噪聲源聲功率級的方法
  10. Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for anechoic and hemi - anechoic rooms

    聲學.利用聲壓測定噪聲源聲功率級.消聲室和半消聲室用精密法
  11. Acoustics - determination of sound power levels of noise sources using sound pressure - precision methods for anechoic and hemi - anechoic rooms iso 3745 : 2003 ; german version en iso 3745 : 2003

    聲學.利用聲壓測定噪聲源的聲功率級.消聲室和半消聲
  12. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  13. Owing to the anisotropic and the biharmonic nature of microwave radar backscatter on spaceborne scatterometer, and to the scatter model function nolinear and the existence of various noise sources in the measurements in addition to the model function, the retrieval wind results consist of as many as four wind directions

    由於衛星散射計探視雷達回波的各向異性的雙調和性質，同時由於散射物理模型函數的非線性及信號中存在噪聲，使得常規點方式風場反演中風向有多至4個解的多解存在。
  14. Acoustics - determination of sound power levels of noise sources using sound intensity - measurement at discrete points

    聲學.利用聲音強度測定噪聲源功率級.第1部分:離散點測量
  15. En iso 9614 - 2 acoustics. determination of sound power levels of noise sources using sound intensity. part 2 : measurement by scanning

    聲學.利用聲音強度測定噪聲源功率級.第2部分:掃描測量法
  16. Acoustics - determination of sound power levels of noise sources using sound intensity - part 2 : measurement by scanning iso 9614 - 2 : 1996 ; german version en iso 9614 - 2 : 1996

    聲學.利用聲音強度測定噪聲源功率級.第2部分:掃描測
  17. The machine has to be operated in an environment that is free from strong noise sources such as high - frequency welder

    同時應在不受高頻焊接機等強噪聲源影響的環境下使用。
  18. Acoustics - determination of sound power levels of noise sources using vibration velocity - measurement for seal machinery

    聲學振速法測定噪聲源聲功率級用於封閉機器的測量
  19. The cement - powder - mill - station of zhejiang topsky cement co., ltd. has the massive noise sources, which leads the factory bound and sensitive point to exceed the allowed standard, and seriously affect employee ' s work condition and residents ' daily life

    摘要浙江天基水泥有限公司嘉善水泥粉磨站存在著大量的噪聲源，直接導致廠界和敏感點超標；並影響到企業員工生產工作環境及周邊居民正常休息。
  20. Abstract : on the basis of the analysis about noise sources of the air compressor, it shows that air dynamic noise is primary one. according to the theory of fluid mechanics, the mathematics model of the air compreesor air dynamic noise is found, which shows the relationship between the sound power level and other parameters. the knowing noise of the air compressor " s air dynamic is of low frequencies. the reliable data is provided for the noise and vibration control

    文摘:通過對空壓機噪聲源的分析，確認空壓機噪聲源中的空氣動力性噪聲為最強；由流體流場的聲學理論，建立空壓機動力性噪聲源的力學模型，它表明聲功率與其它參數的關系；並知空壓機的空氣動力性噪聲呈低頻特性，這為噪聲及振動控制提供了可靠的依據
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