noise unit 中文意思是什麼

noise unit 解釋
噪聲單位
  • 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〉...
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  1. 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。
  2. Schottly barrier diode can be used as rectifying and continuous - flow unit in high frequency rectifying, switching and holding circuit, yet reducing the power consumption and circuit noise, enhancing the circuit efficiency and operation frequency

    肖特基二極體在高頻整流、開關電路和保護電路中作為整流和續流元件，可以大幅度降低功耗，提高電路效率和使用頻率，減少電路噪聲。
  3. According to the project of adaptive multi - rate speech coding ( amr ) being put forward by the third generation group of the mobile communication, this paper takes the principle of the speech arithmetic as the base, studies the technologies including the source controlled rate, voice activity detector, comfort noise and the error concealment unit in amr, discusses its the characteristic of adaptation and analyses its performances particularly. amr c codes are researched carefully through the modules being divided into and debugged under the tms320c54x provided by the ti corporation, and optimized in selecting the method of c code embedded assembler codes and simplified in the search codebook combining with the theory of speech coding, which are based on the realization about theory and practice of the optimization of amr speech coding

    從自適應多碼率語音編碼演算法的c代碼出發，對它進行模塊劃分後作了系統分析，將其在vc下調試通過，進一步在ti公司提供的tms320c54x環境中進行調試，結合語音編碼理論，對演算法進行優化，採用了在c代碼中嵌入匯編和簡化自適應碼本和固定碼本搜索的方法，部分地提高了c代碼效率，為實現自適應多碼率語音編碼的優化奠定了理論和實踐基礎。
  4. In the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  5. Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  6. In practice, as we have chosen finished engine sets, it is both difficult and impractical to apply control measures on the engine unit. given that the operation of the diesel engine normally pollutes the environment in the form of noises, it is therefore a very practical and unavoidable task to prevent the diesel engine noise inside the engine room from radiating outward

    在實際工作中，由於我公司所選用的都是配置好的發動機整機，機組本身採取控制措施難度很大，而且不現實。考慮到油機運轉過程中一般主要是其噪聲污染周圍環境，因此，如何有效地控制機房內油機噪聲對外輻射是一個非常現實而且必須解決的問題。
  7. Our company has become the standing director unit of the environmental protection industry association of liaoning province, appointed supplier in china of britain howden company noise abatement apparatus, scientific and technical innovation unit in the northeast of china, new and high - tech enterprise of liaoning province, the most sincere enterprise of liaoning province, observing contract and valuing credit enterprise of liaoning province, excellence enterprise of environmental protection industry of liaoning province, comprehensive appraisal aaa grade enterprise and star enterprise in jinzhou, etc

    公司現已成為省環保產業協會常務理事單位、英國豪頓公司噪聲治理設備中國地區指定供貨商、東北三省科技創新單位、遼寧省高新技術企業、遼寧省最佳誠信企業、遼寧省守合同重信用企業、遼寧省環保產業優秀企業、綜合評價aaa級企業以及市明星企業等。
  8. The gain of the extended fiber optic hydrophone and the hydrophone array is related to the directivity of the hydrophone and the noise model used to calculate. an extended hydrophone based on the fiber optic michelson interferometer consist of four same sensing units is constructed, of which every unit is reeled on a mandrel with polymer to enhance the sensitivity

    論文在實驗上完成了基於光纖邁克爾遜干涉儀結構的成組光纖水聽器的光學設計和機械設計，製作了子單元間距為0 . 16m ，全長為0 . 52m的4子單元成組光纖水聽器。
  9. The use of interferometer to detect and analyze laser radiation is well known, but when the intense ratio of the laser radiation to the background natural light radiation is too small, the laser radiation cannot be detected. a novel more sensitive method for detect of wideband weak incident laser in strong background noise is introduced in this paper. the optical unit uses two wedge interferometers and two line array detectors. the incoming light radiation is divided into two beams and through the interferometers

    在被動激光偵察告警中，對微弱脈沖激光信號的探測是一個難點。當探測距離相當遠或視場內接收的背景光輻射很強時，脈沖激光信號到達探測器的能量很小，會淹沒在強大的背景光信號中而探測不到。本論文提出了一種探測微弱脈沖激光信號的方法，可對強烈背景光中的激光威脅信號進行探測和告警，並給出其波長參數。
  10. Article 29 the unit in charge of a construction project which may produce environmental noise pollution due to the use of machines and other equipment, must report, 15 days before commencement of construction, to the competent administrative department for environmental protection of the local people ' s government at or above the county level the name of the project, the construction site, the length of time needed for completion of the project, the possible level of environmental noise and the measures taken for prevention and control of such pollution

    第二十九條在城市市區范圍內，建築施工過程中使用機械設備，可能產生環境噪聲污染的，施工單位必須在工程開工十五日以前向工程所在地縣級以上地方人民政府環境保護行政主管部門申報該工程的項目名稱、施工場所和期限、可能產生的環境噪聲值以及所採取的環境噪聲污染防治措施的情況。
  11. Raft vibration - isolating unit is a device that can isolate the transmission of vibration and structure noise to the base effectively

    浮筏隔振裝置是一種十分有效的減少機械振動噪聲傳遞的裝置，如設計完美，能將振動能量減少35 40db 。
  12. End trimming and trimming unit adopt imported high - motor, it is high precision, lower noise, long life, processing stability

    銑邊、齊邊採用進口高速電機，精度高、噪音小、壽命長、運行平穩。
  13. Each unit of a speech recognition system is studied in this paper, which includes the preprocessing, the training of reference patterns, the connected digit speech recognition algorithm and the postprocessing of confusing pairs. the research of endpoint detection includes the endpoint detection not only in the quiet environment but also in the low signal - to - noise ( snr ) situation. as far as the training of the reference patterns is concerned, the modified k - means algorithm is adopted. the most important part of this paper is the research of connected speech recognition algorithm. two kinds of algorithm are put forward, which are based on the existing fruit of mutual - information match theory

    其次漢語連續數字發音連續程度較高，這主要由於漢語數字發音中零聲母語音出現的較多。另外漢語連續數字串中各個數字的協同發音現象較嚴重也給漢語連續數字語音識別帶來了困難。本文以互信息理論為基礎，從語音模式間的交互信息量的角度，研究了一個完整的語音識別系統的各個組成部分，其中包括預處理、參考模式的訓練、連續識別演算法以及后續處理部分。
  14. The exhaust noise contains complex noise elements, including the exhaust noise with a base frequency measured in the number of exhausts in unit time, the resonance noise of the gas column in the pipe, the gas stream blowing noise at the exhaust manifold, the exhaust gas jetting and impact noise, the helmholtz resonance noise of the cylinder, the karman eddy noise and the turbulent noise inside the exhaust system

    排氣噪聲包含了復雜的噪聲成分：以單位時間內排氣次數為基頻的排氣噪聲、管道內氣柱共振噪聲、排氣歧管處的氣流吹氣噪聲、廢氣噴注和沖擊噪聲、汽缸的亥姆霍茲共振噪聲、卡門渦流噪聲及排氣系統內部的湍流噪聲等。
  15. Time domain noise is simulated by the mathematical pseudo uniform or normal random variable and coupled to deterministic signals such as rectangular ( rect ), triangular ( tria ), unit step exponential ( uexp ), even exponential ( eexp ), or gaussian ( gauss ) pulse voltages in finite number of time samples in finite time period

    用數學類真均勻或常態隨機變數模擬時域雜訊，與定然時域訊號如，方形、三角、指數遞減、或高斯等電壓脈波在有限時域?圍之有限個時域取樣結合。
  16. They also have the characteristics of elegant shape, safety, stable function, low operating noise, long lifespan, convenient installment and reparation. our factory has won puatity verification certificate, fireproof products manufacturing permision certificate and nation patent of relevant nation technology supervision departments, and it has been verified as " fixed quality supervision unit " and " famous and excellent product " by the committee of quality authorities travel under " quality ten - thousand - mile travel "

    公司始終堅持「品質、效率、務實、開拓」的企業精神。擁有一批精幹的科技人才和管理人員以及操作熟練的生產工人。公司是「中國消防協會」單位會員，防火卷簾電機系列在2000年"昆明消防產品行業商會"公開審定大會上，綜合評定一致推薦為「首選產品」 ，公司先後榮獲各種榮譽和品質優異的表彰。
  17. Research on tyre noise begins with the cooperative project between automation institute of wuhan university of technology and shanghai rubber group. with the further research on tyre pattern noise, lower noise tyre pattern analysis and designing software made by us intrigues tyre industry and relative research unit more strongly, and they not only show their cooperative tendency, but make more demands on high intelligence of software

    開始對輪胎噪聲進行研究是因為1994年武漢工業大學自動化研究所與上海橡膠集團合作的「輪胎花紋噪聲控制」項目，隨著我們對輪胎花紋噪聲研究的深入， 「低噪聲輪胎花紋分析與設計系統軟體」越來越受到輪胎工業和相關研究部門的關注，他們不僅表示了合作的意願，也對軟體的高度智能化提出了新的要求。
  18. It is a product consists of most advanced techniques in the world, such as cold accumulation, fine overshoot and underload pid intelligent temperature controller, high efficiency low noise circulating water pump, unit integration technology, separation design, etc

    本設備集蓄冷技術、微超調、微欠調pid調節智能溫控儀表、高效低噪聲循環水泵、單元集成化工藝、分體式設計等國際上最先進技術於一體，是一個高科技、高技術、新工藝、新觀念的綜合體。
  19. In the design of optical system, to improve system precision, the fiber optic coupler is added to make a laser pulse circle ; in the unit of photo detection, we make a high - precision temperature compensation apd bias circuit, which allows system to abate the noise caused by temperature changer and dark current

    應變測量系統主要由光源、傳感光纖、光電探測器和信號處理電路組成。在光學系統設計中為提高系統的精度採用了光纖定向耦合器實現光脈沖的循環；在光電轉換單元上採用高精度溫度補償的apd偏置電路，減小了溫度和暗電流帶來的噪聲干擾。
  20. Noise analysis of a kind of 4 - way cassette indoor unit

    一種嵌入式空調室內機噪聲分析
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