標準噪聲聲源 的英文怎麼說

中文拼音 [biāozhǔnzàoshēngshēngyuán]
標準噪聲聲源 英文
reference sound source
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 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
  • 標準 : （衡量事物的準則; 榜樣; 規范） standard; criterion; benchmark; pip; rule; ètalon （衡器）; merits
  1. 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。
  2. 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。
  3. Acoustics - determination of sound power levels of noise sources using sound pressure - survey method using a reference sound source

    聲學聲壓法測定噪聲源聲功率級使用標準聲源簡易法
  4. Acoustics - determination of sound power levels of noise sources - guidelines for the use of basic standards iso 3740 : 2000 ; german version en iso 3740 : 2000

    聲學.噪聲源聲功率級測定.基礎標準使用指南
  5. Acoustics. determination of sound power levels of noise sources. guide lines for the use of basic standards and for the preparation of noise test codes

    聲學噪聲源聲功率級的測定-使用基礎標準與制訂噪聲測試規范的準則
  6. The receiver works on active mode and passive mode in different time. in active mode, the receiver is narrow - band and high sensitive, and if phase - lock technology is used to stabilize receiving frequency. and in passive mode, the receiver is an all - power millimeter wave radiometer with periodic calibration to improve measure precision

    此接收機採用分時工作體制，在主動工作方式時為窄帶的高靈敏度毫米波接收機，接收機中採用中頻鎖相技術，簡化了毫米波鎖相帶來的困難；在被動工作方式時為全功率型的毫米波輻射計，這種輻射計在每次測量后都採用兩個標準源對輻射計定標，實現周期定標，消除因系統增益波動和有效本機噪聲波動帶來的測量誤差，提高測量測量精度。
  7. Noise effect 75 - 80db single source reaching the national standard for labor hearing protection

    噪音效果75 - 80分貝單一聲源達到國家勞工失聰保護條例標準。
  8. This article firstly deal with the sound source, noise measurement and analysis, noise control principle and some basic noise control technology, then elaborate the current noise detection standard and method for the coach in our country, the noise mechanism. characteristics and the measures of noise - controlling, finally. describe the actions of noise control, noise detection and optimization in our coach detailedly, which have met with the expectation

    本文首先敘述了聲音的產生原因、噪聲的度量和分析方法；介紹了噪聲的控制原理和原則以及一些基本的噪聲控制方法。然後，介紹了我國目前的客車車內噪聲的檢測標準和方法；詳細闡述了客車主要噪聲源的產生機理和噪聲特性以及車內噪聲控制措施；最後，理論與實際相結合，對我公司的lck6122型大型客車採取了相應的噪聲控制措施以及並其進行了測試和優化。
  9. Acoustics - determination of sound power levels of noise sources - guidelines for the use of basic standards

    聲學.噪聲源聲強級的測定.基礎標準用指南
  10. Guidelines for the preparation of standard procedures to determine the noise emission from sources

    聲源發出的噪聲測定的標準程序編制指南
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