low conversion 中文意思是什麼

low conversion 解釋
低轉化率
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • conversion : n 1 變換，轉化，轉換；換算，換位。2 （意見、信仰等的）改變〈特指改信基督教〉；（車身，設備等的）...
  1. Advances in study of hydraulic characteristic parameter conversion for low - lift pumping devices

    低揚程水泵裝置水力特性參數換算研究綜述
  2. In view of this situation this article has conducted research to the design of metallurgy auxiliary biography with the frequency conversion table electrical machinery first multianalysis to the frequency changer and the frequency conversion table electrical machinery movement characteristic is carried out, the voltage waveform harmonious which the frequency changer outputs is big, attacks in a big way, and the voltage climbing rate reaches as high as 6600v / mu s which is 20 times ordinary sine alternating voltage, the rolling mill auxiliary biography table set the extremely strict request to the electrical machinery ; its movement frequency is very low, rate frequency in 8 - 20hz ; the velocity modulation scope is wide, the lowest movement frequency lowers to 1hz, and the starting number of times is quite frequently, each hour reaches as high as 600 - 800 time, the impact shoulders in a big way, the overload capacity request is high

    針對這一情況本文對冶金輔傳用變頻輥道電機的設計進行了系統研究。首先對變頻器和變頻輥道電機的運行特性進行詳細分析，變頻器輸出的電壓波形諧波大，沖擊大，電壓上升率高達6600v / s ，是普通正弦交流電壓的20倍;軋機輔傳輥道對電機提出了十分嚴格的要求:其運行頻率很低，額定頻率在8 - 20hz ;調速范圍寬，最低運行頻率低到0 . 5hz ，起動次數相當頻繁，每小時高達600 - 800次，沖擊負荷大，過載能力要求較高。
  3. Installation guide for low speed wind energy conversion system

    低速風力機.安裝規范
  4. Technical specifications for low speed wind energy conversion system

    低速風力機.技術條件
  5. Series for low speed wind energy conversion system

    低速風力機.系列
  6. Types and basic parameters for low speed wind energy conversion system

    低速風力機.型式與基本參數
  7. In the paper we mainly researched space gainp2 / gaas / ge high efficiency tandem cells " making process by home - made low pressure mocvd technology and new solar concentrators. firstly, we presented reseached and development of solar cells in china and foreign countries ; secondly, on the basis of fundamental priciples and theories, we discussed some factors of influcing conversion efficiency of solar cells, and analysed the i - v output feature of two - junction tandem cells ; then the design concept of gainp2 / gaas / ge two - junction tandem cells was discussed, the detailed aspects of gainp2 / gaas / ge tandem cells epitaxy growth by low pressure mocvd was studied, and some questions on epitaxy growth ( such as crystal qualities, interface stress, element interdiffusion, n - and p - type doping et all ) were solved ; after that, the cell fabrication process was described ; finally, we reseached the hot pressing and mould process technology of an arched line - focus fresnel lens made by pmma, designed and fixed new solar concentrators

    本文致力於用自製的低壓mocvd裝置進行cainp _ 2 / gaas / ge空間用高效級聯太陽能電池製作的工藝以及聚光太陽能電池組件的研究。首先，介紹了國內外太陽能電池的研究現狀及應用情況；其次，運用太陽能電池基本原理討論影響電池轉換效率的因素，分析了級聯電池的伏安特性；隨后，討論了cainp _ 2 / gaas / ge雙結級聯電池的結構設計理念，研究了採用低壓mocvd技術生長cainp _ 2 / gaas / ge級聯太陽電池材料的工藝過程，解決了異質材料生長的結晶質量、界面應力、材料互擴散以及材料n 、 p型摻雜等一系列問題；然後總結了級聯電池的后工藝製作；最後，研究了以pmma為材料的菲涅耳線聚焦透鏡的熱壓成型工藝及其模具的加工工藝，設計並安裝完成新型聚光太陽能電池組件。
  8. In order to solve the default of the limited valid scope and discontinuity characteristic, introducing the state continuous conversion gene based on establishment of respective mathematics model for low and magnitude current scope, and integrate with them reasonably then having established the mathematics model of suitable whole scope and having solved present mathematics model existent problems

    本文針對目前電弧爐負載數學模型存在的適用范圍有限、特性不連續等缺點，在建立了分別適合大、小電流區域運行特性的數學模型的基礎上，引入狀態連續轉換因子，將分別適合大、小電流區域運行特性的數學模型有機結合為一個整體，建立了適合全范圍的數學模型，解決了目前數學模型存在的問題。
  9. Under the organic farming conversion scheme launched in december 2002, afcd provides farmers practising organic farming with technical support and low - interest start up loans where necessary

    有機耕作轉型計劃於二年開始推行，漁護署為參與有機耕作的農友在有需要的時候提供技術支援及低息貸款。
  10. It is shown that the excessive local oscillator drive deteriorates the conversion gain of the mixer at high frequencies, a trend not shown in the low frequency approximation

    我們征明了在高頻下，過大的本振將使得混頻器的轉換增益減小。這一趨勢無法由低頻近似模型給出。
  11. Unlike the monostatic sar, two independent local oscillators are used for up / down conversion in bistatic case, so low frequency components of phase noise cannot be cancelled

    雙基地sar用兩個獨立的本振分別實現上變頻和下變頻，相噪低頻分量不能相互抵消，形成與單基地sar不同的低頻相噪。
  12. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  13. The main circuit is consisted of 18 thyristors circuit and protection circuit. with the help of control subsystem, it can get the output of low frequency voltage ( current ) with the shape of sine wave ; the core of the control subsystem is the cpu of 87c196kc, and the synchronization circuit, the pulse - widen circuit, and the power - enlarged circuit form the accessorial subsystem of the control system. it possesses all the functions of digital triggering, digital tuning, analog / digital conversion ; the input transfer can isolate the input and output ; and the circumfluence reactor can reduce the circumfluence

    主迴路採用由18個晶閘管組成的三相零式電路，並輔以晶閘管的保護電路，通過控制可以得到低頻正弦波的電壓（電流）輸出；控制迴路主要以87c196kccpu為核心，其外圍電路包括同步電路，脈沖拓寬電路，功率放大驅動電路等，完成了數字觸發、數字調節、模數轉換等功能；進線電源變壓器具有變壓和隔離作用；環流電抗器則實現了有效抑制主迴路瞬時脈動環流的功能。
  14. And sampling rate conversion with timing variable interpolator controlled by nco ( from high rate to low rate ) is applied to software radio receivers. the controlling principle and implementation of interpolator are presented

    同時把nco控制的插值變換（從高速到低速）方法應用到軟體無線電接收機中，闡明了其控制原理，指出了控制環路中內插濾器的實現方法。
  15. With the engineering thermophysics subject as a main theory basis, the boiler, the steam turbine, the internal combustion engine and the other new, being developed power machinery and system as the research object, the application of engineering thermodynamics ， heat transfer, computer system control theory, environmental science, microelectronics technology, energy - saving technology and other knowledge ， study the process and the basic law of fuels chemical energy and liquid kinetic energy to converse to the power securely and efficiently and low ( or no ) impurely ; study the energy conversion process systems and technology of equipment automatic control ; study the producing mechanism and emission control technology of combustion pollutants ; study energy - saving technologies and the development of new energy technologies

    熱能工程是以工程熱物理學科為主要理論基礎，以鍋爐、汽輪機、內燃機和正在發展中的其它新型動力機械及系統為研究對象，運用工程熱力學、傳熱學、計算機自動控制理論、環境科學、微電子技術、節能技術等學科的知識，研究燃料的化學能和液體的動能安全、高效、低（或無）污染地轉換成動力的基本規律和過程；研究能量轉換過程中的系統和設備的自動控制技術；研究燃燒污染物生成機理與排放控制技術；研究節能技術與新能源的開發技術。
  16. Parallel structure of poly - phase decomposition and parallel mixer is applied in the ddc circuit, it solves the bottleneck in mixing and increases the handle speed. the partition of the tuning channel according to the digital mixing sequence, and the ddc by means of decimating first, the low - pass filtering and mixing realize efficiently the down - conversion of the variable carrier frequency band - pass signal. according to the structure of the ddc and the requirement of the frequency

    短數據快速測頻演算法的具體實現:使用并行流水線的設計方法，提高了系統的數據吞吐率，在100mhz的系統時鐘下，能夠實時處理400mhz ~ 600mhz速率a / d采樣的數據，在64點采樣， 100mhz系統時鐘情況下，初次測頻佔用時間640ns ，以後每次測頻佔用時間縮短到160ns ，實時地提供多相濾波下變頻所需的載頻位置信息，縮短了接收機的調諧時間。
  17. The multi - level ( ml ) converter has the advantages such as low voltage stress for power devices, smaller output filters and reduced harmonic content of the output voltage, it is very suitable for high voltage and high power conversion applications

    多電平變換器具有電壓應力低、輸出濾波器小及輸出電壓諧波含量小等優點，特別適合於高電壓大功率的應用場合，近年來正受到越來越多的關注。
  18. Features include full 10 - bit data processing, high - quality, motion - adaptive deinterlacing up to hdtv 1080i with enhanced low - angle processing, frame - rate conversion, picture - in - picture ( pip ), picture - off - picture ( pop ), high - quality scaling for multi - windows. in addition, the chip offers programmable pixelboost

    其主要的功能包括了全10位的數字處理，高品質，採用增強的小角度處理技術和運動自適應技術的高清1080i逐行處理，幀頻轉換，畫中畫，畫外畫，高性能的多窗口縮放。
  19. Filter poly - phase decomposition method is adopted in this dissertation. the partition of the tuning channel according to the digital mixing sequence, and the digital down - conversion by means of decimating first, the low - pass filtering and mixing realize efficiently the down - conversion of the variable carrier frequency band - pass signal

    本文採用濾波器多相分解方法，按數字混頻序列劃分調諧通道，使用先抽取，后低通濾波，再混頻的數字下變頻結構，高效實現了變載頻帶通信號數字下變頻。
  20. But it surfers from inversion of the converted bit stream and low conversion rate caused by long fiber ring cavity

    但是，輸出的轉換光脈沖與信號光極性相反，光纖環形長腔的存在導致其轉換速率比較低。
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