環境噪聲源 的英文怎麼說

中文拼音 [huánjìngzàoshēngyuán]
環境噪聲源 英文
source of ambient noise
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 境 : 名詞1 （疆界; 邊界） border; boundary 2 （地方; 區域） place; area; territory 3 （境況; 境地） co...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  • 環境 : environment; surroundings; circumstances; ambient; closeness; ambience; ambiance; atmosphere
  1. For ship mounted sonar, the transducer received not only the required signal but also the ship noise. for distant signal, the ship noise is a strong interference

    在船用聲吶環境中，基陣所接收的除了可能有的目標信號外，還存在本艦噪聲，它對于遠方的目標信號是一個強大的干擾源。
  2. The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.

    聲發射源與接收訊號傳感器間的距離以及環境噪聲的電平是選擇頻帶的主要依據。
  3. The noise of the micromotor is not only considered as one of reflections of environment inside of automobiles but also reflects the design technics and fitting level of the motors

    微電機噪聲是作為車內環境污染的噪聲源指標，同時也是電機設計、工藝和裝配水平的綜合反映。
  4. Based on research progress on economic value of ecosystem services, taking shenzhen for instance, the authors analyze the functions of ecosystem services such as conditioning climate, fixing carbon and releasing oxygen, preserving soil, keeping waterhead, purifying environment, and restraining noises. economic values of all the six kinds of ecological service functions are calculated

    綜述國內外生態系統服務功能價值評估相關研究進展，以深圳市為例，運用生態經濟學原理與方法，闡釋了生態系統調節氣候固碳釋氧保持土壤涵養水源凈化環境和減弱噪聲等生態服務功能，對其經濟價值進行評估。
  5. Based on theories and methods of ecological economics, we explain the functions of ecosystem services in chengdu city, sichuan province of china such as conditioning climate, fixing carbon and releasing oxygen, preserving soil, keeping waterhead, purifying environment, and restraining noises, and estimate the economic value of it

    摘要運用生態經濟學原理與方法，闡釋了成都市生態系統調節氣候、固碳釋氧、保持土壤、涵養水源、凈化環境和減弱噪聲等生態服務功能，對其經濟價值進行評估。
  6. 4 ) a uniform crb expression of bearing estimation for spatially distributed sources in unknown noise environments is derived. more exactly, the crb performance of bearing estimation for spatially distributed sources in several typical spatially - correlated noises is evaluated theoretically and numerically, respectively. it is disclosed that the estimated errors mainly depend on space ambiguity between signal and noise components

    4 ）推導了未知噪聲環境中空間分佈源波達方向估計的統一的crb表達式，分析了幾種典型的空間色噪聲情況下分佈源波達方向估計的極限性能，揭示了信號分量和噪聲分量之間的空間混疊對分佈源波達方向估計的決定性作用。
  7. Here a number of factors must be taken into consideration, such as the environmental standard of the area where the engine room is located, the fender structure of the engine room as well as the engine type, power level and the cooling air volume, etc. the core of the overall control is the concept of " equal sound insulation ", which means to apply a closed fender structure to isolate the engine unit from outside parts so as to cut the outward sound radiation

    經過多年來與環保部門的合作，對油機房進行消噪聲處理，積累了一些治理經驗，主要是必須根據具體的機房項目來確定相應的控制方案，這其中應考慮機房所在區域的環境標準，機房圍護結構形式及油機機型、功率、冷卻風量等因素。綜合控制的核心是等隔聲概念，即用一封閉的圍護結構將機組與外界隔離開來，減少聲源對外的聲輻射。
  8. This system has some functions as following : first, statistic analysis and valuation of the spatial distribution of beijing traffic noise ; second, real - time simulation of the affection that is traffic noise in residential area ; third, previewing statues and standards of environmental noise ; fourth, management of spatial data and property data ; fifth, alternant querying of spatial data and property data ; sixth, inputting graphs and tables. we can build accurate and identical channels of information ' s coming, accelerate the circulation rate of environmental information, and increase the efficiency of environmental information resources by studying and implementing metropolitan environmental noise management information system. meanwhile, it can reduce the burden of these environmental workers

    城市道路交通噪聲信息管理系統的研究與實施可以建立準確、一致的信息來源渠道，加快環境信息的流通速度，提高環境信息資源的利用率，減輕環境工作者的工作負擔，提高環境管理工作中的效率，為環境管理和環境規劃與評價提供依據；該系統的建立與開發同時也為開發類似系統的環境工作者提供參考和借摘要一鑒，為今後實施集水、氣、噪聲、固體廢棄物為一體的環境管理信息系統平臺提供了一個子框架。
  9. 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。
  10. 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。
  11. By reviewing the cases of environment impact value of urban rail transit in china in recent years, and based on the analysis and summary of environment impact value ( eiv ) results and practical effects, some problems in environment impact value ( eiv ) are discussed comprehensively, among which arc the choice of environment protection targets, the accuracy of source strength analogy, forecasting methods of noise and vibration and the principles of control measure

    摘要通過對近年來國內城市軌道交通環境影響評價實例的回顧，在對環境評價結果與實際效果進行分析和總結的基礎上，對環境影響評價中的若干問題進行綜合探討，包括環境保護目標的選擇、源強類比的準確性、噪聲與振動預測方法及採取控制措施的原則等。
  12. However, their noises have some bad impacts on the environment around, which has become a serious problem of noise pollution

    但單臺或多臺熱泵機組的工作噪聲易對周圍環境產生一定影響，已成為近期城市中一類帶有普遍性的固定源噪聲污染問題。
  13. The theoretical analysis shows that mz - ifog can be used to detect the rotation rate of moving objects. a systematic analysis of transfer characteristics of mz - ifog is made. performance - limiting factors, including the path - length difference, the disturbance of temperature fluctuation and stress from working environment, the quality of light source, are all discussed along with methods to reduce their effect on the output signal

    本文用系統的方法分析了mz型干涉式光纖陀螺儀的光傳輸特徵，指出了其較大的非互易性因素-臂長差的存在，分析了工作環境因素（溫度，應力） 、光源質量（輸出光束中心波長、光功率波動及偏振態波動）對系統工作性能的影響，並指出了減少系統非互易因素、抑制噪聲、提高檢測穩定性的措施。
  14. Also, much related research requires the narrowband assumption, which is not always realistic in practical applications. it is necessary to analyze the effects of finite bandwidth to bearing estimation of spatially distributed source. additionally, more complex noise models should be dealt with in practical situations as well as that of white gaussian noise

    不過，其中多數方法僅適用於小角度擴展情況，當角度擴展比較大時，需要在估計的穩健性和運算量之間進行折中；而且，許多方法要求信號傳播滿足窄帶假設，這在實際的應用場合中可能很難得到滿足，有必要分析信號帶寬對分佈源波達方向估計的影響；另外，也有必要考慮空間色噪聲環境中的分佈源波達方向估計問題。
  15. As most telephone offices are located in densely populated areas, which usually have a strict requirement on the environmental quality, the noise from dgeu thus becomes a major pollution source to the surrounding environment

    由於電話局大部分處在人口密集的地區，這些地區對環境的要求很高，而柴油發電機組噪聲往往成為周圍環境噪聲的主要污染源。
  16. Based on fourth - order cumulant, a computationally efficient method for joint estimating both directions of arrival and ranges of near field sources with known carrier frequency is firstly presented. the proposed algorithm need not any spectral peak searching and the 2 - d parameters are automatically paired. lt is suitable for arbitrary additive gaussian noise environment. in the following section, a 3 - d esprit method for jointly estimating of frequencies, doa ' s and ranges of multiple near - field sources with unknown carrier frequencies is proposed. the parameters estimation are given by the eigenvalues of different matrices. furthermore, its performances are confirmed by several computer simulations

    利用四階累積量，第五章首先給出了一種載頻已知的情況下基於近場源的距離和波達方向聯合估計演算法，通過構造的陣列輸出信號四階累量矩陣使空間信號到達方向和距離估計無需譜峰搜索，且參數自動配對，適合於任意高斯噪聲環境。進一步在第三節提出了一種載頻未知的情況下的多個近場窄帶信號源doa 、距離和頻率聯合估計的3 - desprit演算法。
  17. For successfully applying ae on detecting crack during fatigue test, noise restraining, signal locating and the building of ae features database has been deeply investigated in this thesis. in brief, the following are the primary contents : by analyzing the source of noise, several methods of restraining the noise are proposed : space filter, amplitude filter, bp filter, parameters filter, hit time setting and illustrate analysis

    本文基於將聲發射技術應用到直升機部件疲勞裂紋檢測中，對噪聲的抑制、聲發射源定位的問題以及聲發射特性典型參數數據庫的構造進行了研究，主要工作如下： ?分析噪聲的來源，對如何抑制環境噪聲進行了研究。
  18. The coherence analysis of the sound field using prssure and particle velocity combined processing was discussed. a new kind of combined sensor was used to gather the information of the sound field. the main idea of this paper is to seperate ambient noise field ， and the characteristics of it can be further studied. the coherence of a point source sound field was also analyzed to verify the validity of the approach

    聲場聲壓與振速的相干性是聲壓、振速信息聯合處理的重要物理基礎之一，本文對其進行了初步的分析.在新型組合傳感器湖試的基礎上，把環境噪聲場分解為不相干的各向同性分量和相干的各向異性分量，初步分析環境噪聲場的構成；同時對點源聲場的相干性也進行了驗證性的分析
  19. This text introduces the effective administration method of the main source of the urban ambient noise ( traffic noise ) - research and design of the noise barrier

    主要介紹了城市環境噪聲的主要來源（道路交通噪聲）的有效治理方法聲屏障的研究與設計。
  20. As one source of environmental pollution, diesel noise comprises multiple sound sources, which are mainly the aerodynamic noise and the surface radiation noise

    柴油機組噪聲是一種環境污染源。它由多種聲源構成的，主要為空氣動力噪聲和表面輻射噪聲。
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