起振條件 的英文怎麼說

中文拼音 [qǐzhèntiáojiàn]
起振條件 英文
start oscillation condition
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 條 : Ⅰ名詞1 （細長的樹枝） twig 2 （條子） slip; strip 3 （分項目的） item; article 4 （層次; 秩序; 條...
  • 件 : Ⅰ量詞（用於個體事物） piece; article; item Ⅱ名詞1. （指可以一一計算的事物） 2. （文件） letter; correspondence; paper; document
  • 條件 : 1. （客觀的因素） condition; term; factor 2. （提出的要求） requirement; prerequisite; qualification
  1. A new numerical procedure for analyzing the coupled vibration of a framed arch bridge with a single moving vehicle is presented to solve the equations of motion of a bridge with many degrees of freedom. the procedure consists in dividing the bridge - vehicle systems, which are solved separately, into 2 subsystems at the interface of the bridge and vehicle. the compatibility at the interface is obtained by an iterative procedure with aitken acceleration

    本文提出新的計算橋梁車激振動反應的方法，車?橋系統被分成兩個相互作用的子系統，這兩個子系統通過接觸點的協調條件耦合在一起，從而應用aiken動態加速法對橋梁運動方程、車輛運動方程和車?橋耦合方程進行高效迭代求解。
  2. But the traditional literary style of breaking the memoir that " and century goes together ", historical value enhances each other s beauty with literature value, make people find everything fresh and new, inspire

    由於這主觀客觀兩方面條件的制約，使回憶錄的文學價值相對小說等其他文學體裁來說比較貧弱，不易引起文學研究者的注意。然而與世紀同行打破回憶錄的傳統寫法，歷史價值與文學價值交相輝映，令人耳目一新，為之一振。
  3. 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 。
  4. Reform and opening up represent a great new revolution carried on by the people under the party ' s leadership in a new era to release and develop the productive forces, modernize the country, bring prosperity to the chinese people and achieve the great rejuvenation of the chinese nation ; to promote the self - improvement and development of china ' s socialist system, inject new vitality into socialism, and build and develop socialism with chinese characteristics ; and to improve the building of the party as it leads contemporary china in development and progress, preserve and enhance its vanguard nature, and ensure that it is always in the forefront of the times

    改革開放是黨在新的時代條件下帶領人民進行的新的偉大革命，目的就是要解放和發展社會生產力，實現國家現代化，讓中國人民富裕起來，振興偉大的中華民族；就是要推動我國社會主義制度自我完善和發展，賦予社會主義新的生機活力，建設和發展中國特色社會主義；就是要在引領當代中國發展進步中加強和改進黨的建設，保持和發展黨的先進性，確保黨始終走在時代前列。
  5. Reform and opening up represent a great new revolution carried on by the people under the party ' s leadership in a new era to release and develop the productive forces, modernize the country, bring prosperity to the chinese people and rejuvenate the great chinese nation ; to promote the self - improvement and development of china ' s socialist system, inject new vitality into socialism, and build and develop socialism with chinese characteristics ; and to improve the building of the party as it leads contemporary china in development and progress, preserve and enhance its vanguard nature, and ensure that it is always in the forefront of the times

    改革開放是黨在新的時代條件下帶領人民進行的新的偉大革命，目的就是要解放和發展社會生產力，實現國家現代化，讓中國人民富裕起來，振興偉大的中華民族；就是要推動我國社會主義制度自我完善和發展，賦予社會主義新的升級活力，建設和發展中國特色社會主義；就是要在引領當代中國發展進步中加強和改進黨的建設，保持和發展黨的先進性，確保黨始終走在時代前列。
  6. The current source plays an important part in the performance of the oscillator. with the help of the voltage reference, we design a constant current source which does not vary with the temperature 、 the voltage source and the process

    由於充放電電流對弛張振蕩器的性能有很大的影響，因此本文把基準電壓源結合在一起設計出一個受溫度、電源電壓、工藝條件影響很小的基準電流參考源。
  7. The fatigue accumulation damage of the component has something to do with its model, different model causes different damage speed on the component which will show different magnetic memory characters. the paper build the mathematics model of wave shape of orders con - wave and accumulation damage distribution on several boundary conditions, combining theory deducing, simulation analysis and experiment validation, deducing the relation among fatigue accumulation damage degree, damage speed and magnetic memory characteristic parameters

    振動構件疲勞累積損傷與振型有關，不同振型引起的損傷速率不同，具有不同的磁記憶特徵。本文將理論推導、模擬分析和實驗驗證相結合，建立多種邊界條件下的各階諧波波形與累積損傷分佈的數學模型，推導疲勞累積損傷度、損傷速率與磁記憶特徵參量的關系，並利用模擬試驗系統驗證和完善，實現利用磁記憶方法對這類累積損傷構件進行早期診斷的目的。
  8. A hysteretic loop is also found in this system and its influencing factors are analyzed to discuss the condition of its occurrence, which is expected to help further understanding the mechanism of thermoacoustic oscillation

    針對不同的加熱功率和充氣壓力，系統地研究了起消振過程中的溫度、壓力變化特性，著重分析了滯后迴路形成的過程和影響熱聲系統滯后迴路的因素，指出滯后迴路存在的條件，對深入理解熱聲系統的起消振行為具有參考意義。
  9. The main research is as follows : analyze and research the boundary constraint and the structure characteristic and segment the frame making use of the shell element, the pipe element etc. on the base of it the practical finite element model has been established ; analyze the mode of the frame by dint of the finite element model. and get the inherent frequency and the vibration mode of the frame. tentatively estimate the dynamic characteristic of the frame and analyze the inherent frequency that may be lead to the resonance

    論文的主要研究工作如下：分析研究車架的邊界條件和結構特性，並用殼、管等單元對該車架進行離散，建立一種切實有效的車架有限元模型；對該車架的有限元模型進行模態分析，求得其的固有頻率和振型，並對車架的動態特性做出初步評估，分析可能引起車架振動的固有頻率；在模態分析基礎上，研究發動機輸出的簡諧力引起的車架位移響應（即諧響應分析） ，以考察摩托車車架各部位的振動情況並與模態分析對比，分析是否與該車架的固有頻率相耦合而導致共振；在深入研究車架的模態分析及諧響應分析、清晰地認識了摩托車車架動態特性的基礎上，分析並提出了採用橡膠減震器對車架進行隔振的減震方法。
  10. The resonance network is connected to the gate, then the output and input matching network is designed to satisfy the oscillation criteria. then harmonic balance method is used to analysize and optimize the output power and phase noise. to minimize the load pulling effect a buffer amplifier is designed to isolate the oscillator and the load

    本文在場效應管fet柵極上加上諧振網路（諧振網路是通過cst模擬得到的，它是串聯反饋迴路，介質工作在te01模，對于其後的fet ，它又相當於一個帶阻濾波器） ，然後設計輸入輸出匹配電路，使電路結構滿足起振條件，之後繼續用諧波平衡法模擬和優化，使振蕩器輸出功率合適，相位噪聲很低。
  11. The influences of the rotation of drops forced by orthogonal acoustic waves and the surface vibration on undercooling are analyzed and the conclusion that ultrasound can suppress the undercooling level has been drawn

    分析了聲場對過冷度的影響，認為聲波引起的樣品表面振動以及試樣的繞軸自轉都會抑制過冷度的進一步提高，不利於深過冷條件的獲得。
  12. The resonant box effect is the most important. in chapter five, we use the experimental setup constructed and the cavity decay time method to measure the total loss of a passive resonant cavity, and analyse the experimental data in very detail. we conclude that, in present experimental conditions it is the uniformity and stability of laser mirror to confine the precision and repeatability of experimental results

    第五章在建立起了連續光波時間衰減法測量裝置的基礎上，進行了無源諧振腔總損耗的測量，仔細分析了實驗過程中的誤差因素，並指出在目前的實驗條件下限制測量精度和重復性的主要原因是激光鏡片的均勻性和穩定性不理想。
  13. The simulation results show that to start the oscillation, the length of the resonance cavity must be well matched with the radial span of the cavity ; mismatch of them will greatly affect the microwave development ; the output power of the microwave in rtto is affected by the microwave mode obviously. under the same conditions, the output power for temooi mode is the highest, and its start and saturation time of oscillation are the shortest. the results also show that the output power will decrease with the increase of the size of the extract window ; the operating state of rtto has great close relationship with the operating current, and there exists an optimum current value

    結果表明，束電壓一定時，諧振腔腔長和徑向間距必須良好匹配微波才能起振，匹配不佳會極大地影響微波產生；微波模式對微波產生功率影響很大，同等條件下， tem _ （ 001 ）模式的微波功率最高，起振時間和飽和時間最短；微波輸出功率隨提取口的增大而減小； rtto工作狀態與工作電流的大小關系密切，存在一個最佳工作電流值。
  14. Since the concept of superlattice was proposed, vertical transport in superlattice has been investigated widely. the electric field domains and current self - oscillations which result from sequential resonant tunneling between different subbands of the superlattice are very significant phenomena. such kind of oscillation can be uesd to make tunable microwave oscillaors. in this thesis, low temperature transport problem, especially the formation of field domain and the condition of current self - oscillations in doped gaas / alas superlattice with weak coupling are investigated thoroughly and also by combining the macroscopic model with the microscopic one., the voltage - current characteristic and the current oscillation are simulated. the calculated result is nearly consistent with the experimental data

    由超晶格中子能級之間的順序多阱共振隧穿引起的電場疇及電流自維持振蕩現象是其中的一個非常有意義的分支，該現象可用來製作電壓調諧微波振蕩器。本論文對弱耦合摻雜gaaa alas超晶格中的縱向輸運特別是針對低溫下的場疇的形成和固定偏壓下電流自維持振蕩產生的條件進行了深入的探討，並結合宏觀模型和微觀模型對超晶格在時變電壓作用下的電壓-電流特性以及固定偏壓作用下的電流特性進行了模擬計算。
  15. Different filtering methods have been tested to examine the effects of all kinds of filters. the correction of inertial sensor errors, navigation algorithm, coning motion, and sculling motion have also been investigated. based on the above works, the initial alignment on stationary base using imu with mdrlg has been carried out, and an usable navigation software has been completed

    對機抖激光陀螺引起的高頻振動的補償方法進行了研究，對不同的濾波方法進行了試驗;對機抖激光陀螺捷聯系統的儀表誤差補償、導航解算演算法、圓錐補償演算法和劃槳效應補償方法進行了研究;對靜基座條件下機抖激光陀螺捷聯慣導系統的初始對準方法進行了研究，編寫了實用的導航軟體。
  16. It has good shock - resistant feature besides others, especially suitable for gases, liquids or vapor, under mechanical shock and fluctuating pressure, which neither corrode copper alloys, nor crystallize, nor precipitate

    該壓力表除具有一般壓力表的性能外、還具有良好的耐振性能，特別適用於機械震動和壓力有波動的條件下，測量對銅合金不起腐蝕作用，且不結晶，不沉澱的氣體、液體、蒸氣等介質的壓力。
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