相對功率 的英文怎麼說

中文拼音 [xiāngduìgōnglǜ]
相對功率 英文
relative capacity
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 功 : 名詞1 （功勞） exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  1. In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis

    論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量，導出了超高壓長線的波阻抗和傳播常數的數學解析式，在此基礎上進行了500kv輸電線路實時參數計算；提出以三繞組自耦變壓器的電流、電壓、功率為輸入量，導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算；在此基礎上編制了相應的軟體。
  2. 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。
  3. Presents the steady - state programming with constant coolant average temperature and constant live steam pressure, an ideal programming for marine nuclear power plant ( npp ), under which, both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied, and points out that in comparison with the steadysate programming with constant coolant average temperature, the ideal programming can improve the overall operating performance of npp effectively, especially in low - load range, for instance, raise the heat efficiency of npp, decrease the operating noise of main coolant pump, and improve the conditions of design, operation and control of the secondary loop system

    雙恆定運行方案是船用壓水堆核動力裝置的理想運行方案.在這種運行方案下，當裝置穩態功率變化時，冷卻劑平均溫度與蒸汽壓都保持不變，與通常採用的冷卻劑平均溫度恆定運行方案相比，有效地改善了核動力裝置的總體運行性能，特別是在低負荷運行時，可以提高裝置經濟性、降低主泵運行噪聲、改善二迴路系統的設計、運行和控制條件，這對于提高船用核動力裝置的運行可靠性和安全性具有實際意義
  4. With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end

    隨后在建立的寬帶射頻前端通用模擬平臺上，加入基帶數字調制信號，對多種數字調制格式的信號在該通用平臺上的傳輸作了研究，模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收，研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響，實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。
  5. The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser

    大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。
  6. There is a period of soil contents range from ten to twenty five days over the humid discussed area in summer, and the period is not obvious at the discussed zone of close oasis desert area in summer and winter. ( 2 ) soil temperature exits several periodic variations of different depths ranging from six to twenty four days in heihe region, and nine to thirty days in gaize and shiquanhe region. it also shows that gradient of soil temperature affects on the soil content movement more greatly in summer. ( 3 ) the land surface temperature of yangtze river lower region is retrieved from noaa - ahvrr data

    （ 2 ）根據土壤溫濕資料，採用功率譜分析、 pca分析等方法，分析了兩種典型下墊面土壤溫度的時空分佈特徵及其對土壤水分運動的影響，發現研究區土壤溫度除日和年變化周期外還存在6 30天的不同周期；下墊面的非均勻性及其季節變化及溫度梯度變化對土壤水分運動有很大影響，冬季溫度梯度變化對土壤含水量影響大於夏季溫度梯度對上壤含水量變化的影響，且溫度梯度與水分運動方向相反。
  7. Based on the character of ultrasonic spectrum analysis, considering the affection of the circuit responsion of checking system, coupling state, position of checking transducer, this thesis established reasonable ultrasonic spectrum analysis method. using this method, several kinds of linear spectrum ( such as phase amplitude spectrum, phase power spectrum ) were researched and discussed

    本文根據超聲波頻譜分析的特點，綜合考慮了檢測電路響應、耦合狀況、探頭位置等因素的影響，制定出了一套合理的超聲波頻譜分析方法，並用此方法對幾種線性譜（如相位幅度譜、相位功率譜等）進行了研究和探討。
  8. The single phase electric motor, which is suitable for wide range of voltage, permits the efficiently cutting of slender fur strips, thicker skins and skins wide in width. the using conditions can be madebetter when the machine is used in the area of unstable voltage

    ：配用單相大功率電機，對于細毛條較厚皮板和大幅麵皮張都可以有效切割適用電壓范圍寬：對于電壓不穩定地區，可以改善使用條件
  9. Based on the six - port relative power theory that for a given load the relative power ratios of different ports are left unchanged with the input power to the six - port varied, characteristic parameters of detectors can be obtained through the least - square method

    根據六埠相對功率理論即對某一負載各埠相對功率比值不隨輸入功率變化，由最小二乘法得到檢波器的特徵參數，結合四標準法，確定六埠網路的系統常數。
  10. This thesis has studied some key hpm power combining technologies such as phase - locked source, high power phase shifter and high power combiner. according to the facts of hprl, it presents a combining project of relativistic magnetron with three output ports which acts as an phase - coherent hpm source. through theoretical computation and hfss simulation, we have designed the hpm dielectric phase shifter and waveguide - based combiner

    對高功率微波功率合成的關鍵技術如鎖相源、高功率移相器、功率合成器進行了討論分析，結合實驗室實際情況，提出了以三埠輸出相對論磁控管作為相干高功率微波源進行高功率合成技術研究的方案。
  11. Compared with a power supply made in other ways with the same capacity, the same number of outputs and the same isolation voltage, the power supply discussed in this paper has the advantages of small in size, light in weight, high efficiency and reliability, low cost and so on

    相對于用其他方式研製的具有相同輸出路數、相同功率、相同隔離電壓的電源，新型電源具有體積小、重量輕、效率高、可靠性強、價格低等顯著優點。
  12. The control method is introduced and the hardware of the controller is designed. the controller uses the tms320lf2407 of ti company as the main control unit and produces the on and off and pwm signal of each phase controlling the igbt on and off

    介紹了srd的控制方式和本系統所採用的控制策略，對控制器的硬體電路進行了設計，控制器以ti公司的tms320lf2407為主控單元，發出相通斷信號和pwm信號，實現對功率元件的通斷控制。
  13. On the basis of analyzing the output signal of a two wavelength beat - wave absolute distance interferometer, this paper proceeds from the realities of the aiming method of the beat - wave interferometer, conducts an analytical investigations on the dependence of the aiming accuracy of the beat - wave interferometer on laser dual - line output power equilibrium, propose two new concepts - a basic aim blind area and a blind area expansion, and establishes an analytical expression between the blind area expansion and the relative power difference of laser dual lines

    本文從拍波干涉儀對準方法的實際出發，在分析雙譜線拍波干涉儀輸出信號的基礎上，研究了雙譜線功率不一致與拍波干涉儀對準精度的關系，提出了基本對準盲區和盲區擴大量的新概念，建立了描述盲區擴大量與雙譜線相對功率差之間關系的解析表達式。
  14. Different distribution of power loss can be worked out by mathcad software based on the formula reasoning. the result of calculation is consistent with that of the experiment, which proves that this method is right. it is pointed out through the analysis of calculating data that the key to improve efficiency at the same output power is to decrease the peak current and rms current of power switches or the on - resistance of mosfet and windings

    由推導可得損耗計算公式，利用數學計算軟體計算出電路輸出從空載到410w阻性負載時損耗分佈變化，該結果與實驗數據基本相吻合，證實了這種方法的正確性；通過對計算數據的分析，指出了進一步提高效率的關鍵在於輸出相同功率時降低功率管的電流峰值和有效值，減小繞組和mosfet的導通電阻。
  15. The other way is to use a single - stage power processor to correct power factor and regulate voltage simultaneously. however, the technology has only been applied in low power of single - phase ac input and has no use in high power of three - phase. so, the three - phase high power supply as the main emi equipment is becoming one of the hot points in international research

    目前，這僅在輸入電源為單相的變換器中實現，而且不是軟開關，仍存在emi ；對于污染問題更嚴重的輸入電源為三相三線的較大功率的變換器，則未見報道，同時，三相大功率的電磁污染治理問題也成為國際研究的熱點之一。
  16. Then, the theoretical analysis of the 3 - phase reversible rectifier circuit is performed in detail. after that a 1kw 3 - phase pwm rectifier is designed in theory and hi practical. in the third chapter, the computer simulation based on matlab is carried out through the simulation, a number of simulation data are gained for studying the relation between the circuit parameters and the reversible rectifier characteristics

    首先對三相功率因數校正技術作了分析和比較，確定本課題研究的內容，指出其研究價值和意義；然後對三相高功率因數可逆整流電路作了理論分析，並在此基礎上，對一個1kw的三相高功率因數可逆整流電路進行了理論設計；利用matlab軟體，建立了計算機模擬模型，對系統的整流和逆變工作特性進行了模擬研究，得到了各電路參數和控制參數與系統性能之間的關系。
  17. Multi - uesr detection ( mud ) refers to signal detection in multiple access communications. this detection has many good properties, such as decreasing multiple access interference, canceling out or moderating near - far resistance, able to decrease the requirement for output control, compensating the effects due to inoptimal orthogonality, improving system performance and increasing system capacity. mud is one of the methods that can overcome the mai in cdma with most potential and complete and becomes one of the critical techniques in the third generation mobile communication

    多用戶檢測是指多址通信中的信號檢測，具有抑止多址干擾;消除或減輕遠近效應;可適當降低對功率控制的要求;彌補擴頻碼互相關性不理想造成的影響;改善系統性能，提高系統容量等眾多優點，是克服cdma多址干擾最有潛力、最徹底的一種方法，並已成為第三代移動通信標準中倡導的關鍵技術之一。
  18. These studies in the thesis have been done as follows : it is proved that if the three - phase single - switch boost type power - factor - correction can work in continuous - current - mode, its power factor can not reach unity. therefore, it is not qualified for high power and high requirement application. according to the ac side equivalent circuit of the three - phase three - switch boost type power - factor - correction, the equations to realize unity power factor have been deduced and realized by integrate - reset - control circuit

    本論文把積分復位控製成功應用於三相功率因數校正技術中，作了以下幾方面的研究： 1 .從理論上證明了三相單開關boost型pfc即使工作在ccm ，其功率因數也不能達到1 ，在大功率和對功率因數校正能力要求較高的場合，三相單開關boost型pfc達不到要求， 2 .根據三相三開關boost型功率因數校正交流側的等效電路，推導出實現單位功率因數所需的控制方程，並用積分復位控制電路進行實現，在理論研究的基礎上進行了模擬研究。
  19. The important study is the electric parameter measurement system which is achieved with sigma - delta a / d converter and dsp " sampling to three phrase voltage and current. its function includes the measurement of current, voltage, frequency, phrase, power, factor, active power and energy, reactive power and energy

    本文主要研究了用? a d轉換器和dsp處理器對工頻三相電壓、電流進行數字采樣，再用數字低通濾波器實現對三相電參數進行測量的測量系統。其主要功能包括對電流、電壓、頻率、相位、功率因數、有功功率、有功電能、無功功率、無功電能等測量，並具有測量數據并行輸出介面。
  20. This thesis studied on the 3 - phase high power factor reversible rectifier

    本文對三相高功率因數可逆整流電路進行了分析和研究。
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