噪聲指標 的英文怎麼說
中文拼音 [zàoshēngzhǐbiāo]
噪聲指標
英文
noise label-
Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比；通過提高壓縮比來彌補動力性的損失；以動力性為主控目標，對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節；通過空燃比的合理控制，直接改善發動機的動力性、經濟和排放指標；作為對缸內燃燒過程的理論分析，進行了燃燒特性的實驗測試；對原汽油機和新開發的液化石油氣發動機，進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。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。In practical design, not only nonideal factors from noise, mismatch, offset etc. are taken into consideration, but also the desired sub _ adc performance is achieved with reduced power dissipation
在具體電路設計中，不僅充分考慮了噪聲、失調和失配等非理想因素，而且在實現系統對子adc的指標限制前提下，降低了功耗。An under estimation of the hearing effects by the low frequency noise could be happened. that is to say, even if the a - weight sound level is small, the low frequency noise may annoy to listener by the different ways from the high frequency noise. so it is necessary to understand psychoacoustics in order to make noise quality evaluations that match the subjective experience of the purchaser
同時應用主觀評價方法?成對比較法（ paircomparisonstatisticalevaluationmethods ）對不同家用空調器噪聲進行主觀評價試驗，並與客觀評價結果進行了對比，結果表明：人主觀響應（煩躁程度）與各心理聲學評價指標之間均具有很高的相關性，相關系數一般均大於0 . 9 ，而與a計權聲壓級之間的相關系數只有0 . 78 。This paper introduces the property requirements on insulating varnish and some technical indicators of import varnishes used in electronic transformer, discusses the effects of baking temperature, baking time, dry capability, impregnation process of varnish on the noise, rustiness box craze, insulating tape bond failure which occurred in electronic transformer
摘要介紹了電子變壓器用絕緣浸漬漆的性能要求，介紹了一些進口絕緣浸漬漆的性能指標，分析討論了漆的烘烤溫度、時間、乾燥性、浸漬工藝對電子變壓器的噪聲、生銹、外殼爆裂、絕緣膠帶脫開的影響，討論了絕緣漆在應用中的環保問題。Acoustics - guide to standards on the measurement of airborne acoustical noise and evaluation of its effects on human beings
關于空氣噪聲的測量及其對人影響的評價的標準的指南This paper has launched exhaustive analysis and study to every module of pll and its key part ( vco ) is also improved. the history of phase - locked technology and the actuality of research on it are introduced. and then beginning with the fundamental principles of a phase - locked system, we build the mathematical model based on the architecture of the traditional analog pll, and afterwards investigate some of its characters such as tracking, acquisition, noising, and stability
本文在對鎖相技術的發展歷史和研究現狀調查研究的基礎上，從鎖相系統的工作原理入手，分析了鎖相環的數學模型，並以此為出發點對其跟蹤性能、捕獲性能、穩定性及噪聲性能等性能進行了較為深入的研究，對環路的各項參數指標進行了詳細的推導，得出了鎖相環數理分析的普遍結論。Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。For sound pickup, acoustic processing aims at the design of transducers or transducer arrays to achieve a durable directionality ( beam steering and width control ) as well as noise resistance
對于拾音，聲學處理的目標是設計耐用的指向性（束調整和寬度控制）及抗噪聲換能器或換能器陣列。Experiment results show that this algorithm can identify static crosstalk that destroy circuits function and provide accurate information for ic back - end optimization
實驗表明，通過驗證噪聲幅值和寬度指標，演算法準確地識別出對電路邏輯功能產生影響的靜態串擾噪聲，為ic設計的後端優化提供了準確信息。Three phase dry type power transformer, which make it with those features : safety, reliability, and energy saving, fireproof, flameproof, simple maintenance etc., the design is advanced ; the structure of products is reasonable and the outline is fine, the main performances of the products are much better than the national standards, for example, partial discharge level no - load loss, on - load loss, noise level, it is adaptable for application on heavy humidity and severely pollute places which are near to lake, sea and rive, as well as, high demand - fireproof, heavy load capacity place, such as : high building, airport, station, port, underground, hospital, electrical power station, metallurgy, shopping center, residential area and petroleum chemical industry, nuclear power station, nuclear - powered submarine
非包封線圈三相干式變壓器，具有安全可靠節能防火防爆維護簡單等優點。其設計先進結構合理外形美觀。主要性能指標均優于國內標準，如局放水平空載損耗負載損耗噪聲以及能適應高溫度環境使用等，可安裝在靠近湖海河邊污穢潮濕的環境及防火要求高負荷較大的地區，適用於高層建築機場車站碼頭地鐵醫院電廠冶金行業購物中心居民密集區以及石油化工核電站核潛艇等場所。Because of the using of interpolation, noise shaping and switching amplification in the digital audio amplifier technology, the power supply modulator is not only much efficient but also behaving good in envelope amplification, this advantage is hard to implemented with conventional technology
數字音頻功放技術是近年發展起來的高效率音頻放大技術，該放大技術採用了過取樣、噪聲整形等數字音頻處理演算法和開關功率放大。採用該技術實現的電源調制器不但具備很高的效率，而且能高指標地放大包絡信號，是常規的電源調制技術無法實現的。This matching algorithm can reduce differences during translation, rotation, and zooming under the noisy or distorted condition. to do this, firstly, select optimum matching - origin - pair in the polar coordinates, then the number of matching pairs can be acquired
本演算法能夠減小指紋平移、旋轉誤差，在有噪聲和形變情況下，先優選出極坐標原點對，進而求出匹配對的數目。Based on the variables of inlet length, compression ratio, inlet opening phase and the exhaust closing phase, multi - objective optimization was conducted for power, torque, combustion noise and fuel consumption indicators with constraint conditions of fuel consumption rate and the maximum breakout pressure
以進氣道長度、壓縮比、進氣開啟相位、排氣關閉相位為可變因素；以比油耗、最高爆發壓力為約束條件，針對滿足功率、扭矩、燃燒噪聲和油耗指標進行多目標優化設計。This dissertation aims at the problem of the noise of over length truck falling short of the lately country standard, and makes research on the reason of the gear - box vibrating noise. by combine using finite element analysis and experimental analysis method, the dissertation directly researches the vibrating noise of the gear - box, and takes some availability measures to control vibrating noise from the box surface. by improving the box to reduce its noise, and validate the effect
本文針對一汽超長載重汽車噪聲指標不符合國家最新標準的實際問題，對其變速箱振動噪聲的產生機理進行深入研究，應用有限元分析與實驗分析相結合的方法直接對其進行振動和噪聲分析，在此基礎上提出控制其振動噪聲的有效措施，並通過對其箱體的改進設計，最終達到減振降噪的目的。It admits of no delay to develop high stability crystal oscillator and enhance its phase noise index to reduce the effect of jitter to the performance of the whole system
研製高穩定晶體振蕩器，提高相位噪聲指標、減少抖動對整體性能的影響，已經成為刻不容緩的任務。Result of measurement indicates noise of the spreader measure up to the national standard
測試結果表明，該攤鋪機噪聲指標達到了國家標?規定的水平。The noise index should be definite, and the problem of noise integrating phenomenon with the indoor equipments should be considered. the improper units should have the noise elimination measure
建議明確噪聲指標，須考慮與室內設備的噪聲疊加問題，不符合要求的機組、空調通風系統必須有消聲處理措施。Proper arrangement of them significantly reduces the energy consumed and noise level and ensures the input power and noise index, solves the problem of insufficient air volume supplied, and improves the indoor thermal comfort effectively
通過對這些部件的合理布置，大幅度降低機組能耗及噪聲，保證了產品輸入功率及噪聲指標，解決了傳統盤管在實際運行時風量小的問題，有效提高了空調房間的舒適性。Today, as the electronic technology is developing fantasticly fast, the request for higher performance of synthesizers is put forward, especially the low phase noise performsnce. as the pll is the main force of modern synthesizer, do a forwad research in technology of low phase noise design is very necessary. for this reason, the paper is mainly focus on the theory and technology of low phase noise pll design
隨著現代通信、雷達、電子偵察和對抗技術的飛速的發展，對作為核心部件的頻率合成器的性能指標提出了更高的要求，特別是相位噪聲指標。鎖相式頻率合成器作為現代頻率合成器的主流，研究其低相位噪聲合成技術是很有必要的。分享友人