放大比率 的英文怎麼說
中文拼音 [fàngdàbǐlǜ]
放大比率
英文
amplification ratio-
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。Letter ratio : point biggest not lose the signal strength of the true voice with at the same time of the emanative noise strength opposite voice for of ratio, usually with meaning, letter comparing more bigly, turn on electricitying the road more small, quality more pure and unadulterated. want to choose the letter the ratio in the product of above. new of summer is with the series the product s letter ratio all in the above, have more professional of performance
信噪比：指最大不失真聲音的信號強度與同時發出的噪音強度之間的比率，通常以表示，信噪比越大，功放電路的相對噪聲就越小，音質就越純正。要選信噪比在以上的產品。夏新和系列產品的信噪比都在以上，有更加專業的表現。By likening a capacitor to a storage tank and an induction coil to a coil spring, tesla realized that a properly configured circuit could amplify electrical signals and raise them to ever higher frequencies and voltages
將電容比擬為儲存槽，感應線圈比擬為彈簧，使特士拉理解到，適當的組裝電路可以將電流訊號放大，並且增加它的頻率及電壓。The notable torsion effects of the surface ground motion above the alluvial valley are illustrated and the torsion effects become stronger as the frequency of the incidence is higher. ( 4 ) antiplane surface motion of the underground circular soft inclusion and the underground homogeneous soft interlayer is investigated in this paper. the results indicate : surface displacement amplitudes just above the soft inclusion of small depth - to - width ratio is amplified and soft interlayer of small depth - to - thickness ratio is amplified to a certain degree, and moreover, the latter is lower limit of the former
結果表明：垂直入射時，小深寬比軟夾塞上方地表位移幅值有較大的放大，小深厚比軟夾層的地表位移幅值也有一定的放大，且後者為前者的下限；波接近掠入射時，軟夾塞正上方地表點和軟夾層的中國地震局工程力學研究所碩士學位論文一地表位移幅值都沒有放大，而軟夾塞迎波面一側地表點的位移幅值會有一定的放大；軟夾塞上方的地表位移運動有較強烈的扭轉效應，且此扭轉效應隨入射波頻率的增高而增強。The analysis showed that terms of trade and volatility of the output gap were predominant among the structural variables. the paper concluded that hong kong, as a small and open economy, was specialised and subject to high income volatility and business cycle fluctuations with relatively concentrated and limited domestic investment opportunities
分析顯示貿易價格比率及產值差距波動是其中主要的結構性因素，並總結認為香港作為細小及開放型的經濟體系，情況獨特，備受收入大幅起伏經濟周期波動，以及本地投資機會相對集中與有限的影響。A novel amplifier chain which is composed of the forward wave crossed - field amplifier ( cfa ) driven directly by solid state amplifier ( ssa ) is better in performances and reliability compared with traditional three stage chain which is composed of " ssa + twta + cfa "
摘要採用固態放大器直接驅動前向波管的新型放大鏈與「固態-中功率行波管-前向波管」三級放大鏈相比較，具有更好的性能指標。Second, the results of theory analysis and simulation research show that the output of one cycle controlled bridge switching power amplifier have dc offset because of the nonideal characteristic of reset signal. the magnitude of output dc offset voltage is proportional to width of reset pulse. a voltage compensation technique is used to solve this question, and the computation formula of compensation voltage is gived. the circuit compensated and not are researched through simulation and experiment, which results show that compensated circuit solve the output dc offset effectively
其次，理論分析和模擬研究結果表明，由於復位脈沖的非理想特性，單周控制的全橋開關功率放大器輸出端存在直流偏置問題，其大小與復位脈沖的寬度成正比。針對輸出直流偏置問題，提出了電壓補償的改進方案，給出了補償電壓的具體計算公式。對補償前和補償后的方案進行了對比模擬研究和實驗研究。Usually point a kind of inside to pack the arithmetic figure cent the network with the box of the power enlarger. arithmetic figure type the power enlarger for method for signal for inputting for arithmetic figure comparing, at with arithmetic figure signal handling again and again partitioning the empress, then and respectively these signals transformation is imitating the signal, then again from eachly from of box enlarge the empress to go to again to push the the cowgirl in the box to pronounce the unit
通常指一種內裝數字分頻網路和功率放大器的音箱。數字式音箱輸入的信號為數字比特流，在用數字信號處理的方法將音頻頻譜分割后，便分別將這些信號變換為模擬信號，然後再由各自的功率放大器放大后再去推動音箱中的相應發音單元。The improvement system is made up of the pressure sensor, flow sensor, displacement sensor, electro - hydraulic proportional flow control valve, power amplifier, data gathering board and computer. the platform can carry out testing the hydraulic parameters, processing the tested data, saving the processed data and drawing, adjusting the pressure automatically
改造后的測控系統主要由壓力傳感器、流量傳感器、位移傳感器、比例節流閥、功率放大器、數據採集卡和計算機組成。改造后的實驗臺具有自動採集實驗數據、自動處理實驗數據、自動保存實驗數據、自動調節液壓系統負載壓力等功能，大大提高了實驗臺的工作效率、測試精度和智能化水平。Now the ion conductivity of gel polymer electrolyte ( gpe ) can reach the magnitude of 10 - 3s / cm, which can satisfy the practical request. however, it is still lower than that of liquid electrolyte ( 10 - 2 s / cm ), which causes the fall of high rate discharge and low temperature performance of lithium battery
目前凝膠聚合物電解質（ gpe ）的室溫離子電導率可達10 ~ （ - 3 ） s cm數量級，已經能基本滿足應用的要求，但相比液態電解液的電導率（ 10 ~ （ - 2 ） s cm ） ， gpe的電導率仍然偏低，使得凝膠聚合物鋰離子電池的高充放電速率和低溫性能都大大的降低。Thus, 21mj of single pulse energy has been obtained. in the case of 10 % reflectivity, less than 3. 7ns with 8. 6 : 1 pulse - compression ratio has been observed
應用200 m光纖獲得了21mj的四通放大輸出能量並在能量反射率10的情況下獲得了高達8 . 6倍的脈沖壓縮比。Discuss the method to improve the efficiency of collecting signal and signal - noise ration. make the setup of detection device, high voltage supply of pmt and low - noise preamplifier ; doing lif detection experiment to green fluorescent dye
詳細討論了提高熒光採集效率和信噪比的措施，製作了探測機構、光電倍增管的高壓供電電路和前置放大器。From the viewpoint of the interactive relationship between modern pension scheme and productivity, this paper observed the function and prospect of occupational pensions in china within a background consisting of population structure, labor productivity, and finance environment, utilized simulation and scenario analysis in actuarial models to estimate and analyze the effect of occupational pensions in the replacement rate of urban retired employees, then pointed out the magnification effect of occupational pensions in increasing the replacement rate and the higher efficiency in improving retirement income of urban retired employees. it also predicted the size expectation of occupational pensions during 2002 - 2010 in china, described the function of occupational pensions in developing the capital market and improving the labor productivity, especially emphasized the higher probability of occupational pensions to play the role of institutional investors compared with basic pension. in short, this paper proved the positive meaning of developing occupational pensions from micro - level and macro - level respectively, and brought forward corresponding policy suggestions
本文立足於現代社會養老保險制度與生產力之間的互動關系這一視角，把對我國企業年金作用與發展空間的考察置於包括人口結構、勞動生產率、金融環境等諸多因素的經濟大背景下，在精算模型中運用模擬（ simulation ）和情景分析方法，對企業年金對我國退休職工養老保險收入替代率的影響進行了定量分析和預測，指出了企業年金在提高退休職工收入替代率方面的放大作用，以及比基本養老保險在提高退休職工收入方面的更高效率；並對我國企業年金2002年- 2010年的預計發展規模做了預測，闡述了企業年金對我國發展資本市場和提高勞動生產率的意義，著重指出了企業年金較之基本養老保險基金充當資本市場機構投資者的更大可能性。It is indicated that the hydration process of cement - based materials with slag, fly ash and silica fume is different in some degree from that of neat cement because of the difference in mineral structure and hydration mechanism. the periods of accelerating, decelerating and terminating are prolonged and hydration reaction decelerates. the second peak of rate curve of the heat evolution could be divided into two small peaks, which are contributed to the hydration of clinkers and mineral mixtures at the temperature of 30 but when temperature comes to 50, the two small peaks combine into one and the reaction accelerates
結果表明，與硅酸鹽水泥相比，由於礦物摻合料與水泥熟料在活性和水化機理上的差異，水化歷程有較大的改變：多組分體系誘導期、加速期和衰減期延長，水化反應速率明顯降低；低溫時，水化放熱速率曲線上的第二放熱峰細化成分別對應于熟料和礦物摻合料水化的兩個小峰；高溫時，反應速率加快，雙峰合併；進一步研究發現，摻合料的種類與摻量對水化歷程也有較大的影響；建立了適用於多組分水泥基材料不同水化階段的水化動力學方程。Too much cnts contributed no effect in the improvement of overall performance of the batteries. the batteries with nano - scale coo shows better active properties, the addition of nano - scale coo further the conductivity of the nickel electrode, thus lower the internal resistance of the batteries, higher discharge voltages are achieved accordingly. for the formation of the better conductive net of coooh, the effectivity of discharge rise, that contributes positive effect to the high rate capability of the batteries
浙江人學碩十學位論文摘要正極添迦納米coo的ni / mh電池具有較好的活化性能，納米coo更好地增強了鎳正極的導電性，進一步減小了電池的內阻;正極添迦納米coo的ni / mh電池還具有較高的放電平臺;由於納米coo的納米結構，以及相對于普通c00更大的比表面積，會在堿液中溶解形成更均勻緻密的co0oh導電網路，從而提高了放電效率，對電池的高倍率性能也有積極的影響。The ratio of output power from an amplifier system, to the input power. gain is normally measured in decibels
放大系統的輸出功率與輸入功率之比，增益通常用分貝表示。In order to measure the characteristics of such semiconductor optical amplifier, we adopted a set of measurement system. this measurement system can be used to measure the characteristics of all kinds of active or inactive optical passive components. such device presents good polarization insensitivity ( < 0. 9db ), wide 3db bandwidth ( > 33nm ) at 0 - 200ma and different input signal light wavelength and power, the maximum fiber - to - fiber gain of 10db, lossless operation current of 50 - 75ma for different input signal light wavelength and power, large extinction ratio ( > 50db ) and lower noise figure ( nf ) ( < 8db )
與張瑞英博士一起，首次利用該種有源區結構制備出偏振不靈敏半導體光放大器，並在0 - 200ma注入電流范圍內獲得33nm的3db帶寬，在不同信號波長，不同信號功率0 - 200ma的注入電流范圍內，偏振相關損耗均《 0 . 9db ，在耦合差損為7db / facet的條件下，最大fiber - to - fiher增益達10db ，無損操作電流為50 - 70ma ，消光比達50db以上，而噪聲指數則低於8db ，最小可達4 . 6db 。Digital design ： binary system, boolean algebra, logic gates, simplification of boolean functions, combinational logic. analog design ： amplifiers, frequency response, feedback, operational amplifier
數位設計：二進位制、布氏代數、邏輯閘、布氏函數的化簡、組合邏輯電路。類比設計：放大器、頻率響應、反饋系統、運算放大器。The magnification of any telescope can be changed very easily by changing the eyepiece. even for the largest telescopes, the magnification is seldom over 500, usually between 100 - 200. thus, large telescopes do not magnify more, they only show brighter and sharper images
其實大望遠鏡並不是把天體放得更大，而只是提供一個較光和較清晰的影像罷了倍率是物體視大小的放大比率，例如一個原本視角直徑為1角秒的物體，若放大后的視大小為30角秒，那麼倍率便是30倍。The second, on the foundation of analyzing with comparing some important coding standards of video at present, the thesis puts forward a project of video coding standards adopting this system. it also realizes the functions of using video compression of mpeg - 4 to compress the video data with the big ratio, using the vfw to gather and deal with the monitoring video on time, using directshow to realize the function of playing back of video streams
第二，在分析和比較目前各種視頻編碼技術的標準的基礎上，提出了本系統所採用的視頻壓縮編碼方案，實現了用mpeg - 4視頻壓縮模塊對採集視頻進行大比率壓縮，用vfw及時對監控視頻進行採集、處理，用directshow技術實現視頻流的回放功能。分享友人