無擾動流 的英文怎麼說

中文拼音 [wúrǎodòngliú]
無擾動流 英文
undisturbed flow
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. The main features of the apparatus are focus on small volume, light weight, no iron core, no magnetic saturation and no ferreous resonance, moreover, related advantages such as the large range of transient and frequency response, excellent electrical magnetic compatibility, oil - free configuration, reliable insulation structure, are all the trends of current transformer in the future. meanwhile, it should agree with the future power gauge and digital, computer, automatic relay protection. it will meet the demand of digital power network

    它具有體積小、重量輕；無鐵芯、不存在磁飽和與鐵磁諧振問題；動態響應范圍大，頻率響應寬；抗電磁干擾性能強；無油化結構、絕緣可靠、價格低等優點；是未來電流互感器發展的方向，是新一代電力數字網發展的需要，適應電力計量和保護數字化、微機化和自動化發展的潮流。
  2. The humankind is troubled seriously by a series of environmental problems, such as air pollution, ozonosphere destruction, glasshouse effect, acid rain, water pollution, land pollution and soil erosion and so on. all of these will stop our economy developing

    大氣污染、臭氧層破壞、溫室效應、酸雨頻繁、水污染、土地污染、水土流失、草原退化、森林急劇減少、珍稀動植物滅絕、沙漠急劇擴大等一系列環境問題嚴重困擾著人類，各種公害接二連三地侵襲人類，再這樣下去，經濟將變成無源之水、無本之木。
  3. The shm ( single hole microblowing ) as a new perturbation active control technique has been applied to the slender body with different model noses at zero sideslip and high angle of attack

    摘要在亞臨界流動范圍內，對具有不同頭部形狀的尖拱形細長旋成體在無側滑大迎角下進行單孔位微吹氣擾動控制實驗。
  4. It has many advantages such as friendly uk perfect function, clear flow, auto wireless data transfer, fec technology, anti - jamming, reliable etc. the system has the benefit of impersonality, equitableness, open and justness

    系統用戶界面友好，功能完善，流程清晰，自動無線數據傳輸， fec技術，抗干擾、糾錯能力強，可靠度高。考試成績客觀、公平，公開，公正。
  5. Design engineers now selecting pmbldc motors over conventional dc or induction motor drives for the following reasons : 1 ) the absence of brushes results in an essentially maintenance free operation and eliminates the undesirable effects of commutation such as sparks, brush - loss, radio - frequency interference, etc. 2 ) the low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time. 3 ) utilizing rare - earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. 4 ) because of the absence of commutation segments, the stator construction is simple

    現在的工程師們更為青睞永磁無刷直流電動機是因為以下幾點原因： （ 1 ）去除了電刷的永磁無刷直流電動機徹底地免除了維護而且消除了我們不希望的由於換向帶來的火花、電刷損耗以及無線電干擾等等； （ 2 ）低轉動慣量的轉子提高了電機機械響應的質量，從而縮短了電機加速和減速的時間； （ 3 ）高矯頑力稀土永磁材料的使用使得同樣尺寸的永磁無刷直流電動機比傳統的直流電動機效率高； （ 4 ）由於沒有機械換向部分定子的結構簡單了。
  6. Firstly, the mechanism of self - excited oscillation was introduced. when the water jets from the inlet nozzle flows into the chamber, the momentum exchange between the jet and the liquid in the chamber occurs, thus to form an unstable shearing layer with certain thickness

    這是一種嶄新的強化換熱技術，流體脈動能夠造成換熱器全程的換熱強化，而且自激振蕩脈沖射流強化換熱技術本身是一種無功強化的方法，無需輸入外部能量來產生擾動。
  7. When running in closed - loop system, the motor will be affect inevitably by load disturbance ? and disturbance due to variety of motor parameter, then the dynamic performance of closed - loop is affected

    無刷直流電機閉環運行時，不可避免地要受到外部負載擾動和由於電機本身參數變化而產生的干擾。因此，電機閉環控制系統的動態性能就會受到影響。
  8. Seniority configuration is unrelated to performance, but performance of the pyramidal organization is higher than diamond for age structure ( 2 ). the effects of age and seniority structure on performance do not seem to disappear even after turnover rate is introduced as a intervening variable, suggesting a robust direct effect of organizational demography on performance

    （ 2 ）無論是年齡結構或年資結構型態對組織績效的影響，均未受到人員流動的干擾而有所改變，此結果肯定了人口結構對組織績效的直接效果。
  9. In the pseudo - time region, high efficient lu - sgs scheme was used in time - marching. cases with uniform or non - uniform inlet stagnation pressure and with or without tip - gap flow were studied. computed results showed that complex structure vortex appeared and secondary flow occurred in the flow of cascade with tip - gap

    對進口總壓均勻或總壓周向虧損（模擬上游尾跡） 、葉尖無間隙或有間隙等三種不同情況的流場計算結果，進行對比分析發現，流場中廣泛存在流動分離、分離渦以及二次流，這是引發非定常擾動的根源。
  10. The resolution of optical system can not reach its diffraction limit because of the phase aberrations caused by atmospheric turbulence and other wavefront errors. adaptive optics technology uses deformable mirrors to perform dynamic phase modulation and endow optical system the ability to decrease the influence of dynamic wavefront errors

    大氣湍流等動態干擾使光波面相位發生畸變，使光學系統的解析度無法達到其衍射極限，而自適應光學系統使用變形鏡對光波面進行動態相位調制，賦予了光學系統能動可變的能力而有效地解決了動態干擾的問題。
  11. A mathematical model, computational method and some experimental results are presented for the hydrodynamic interacting forces and moments between two 3 - d bodies moving in an unbounded water domain. this work is stimulated by a study of the hydrodynamic interactions when a uuv approaching to a parent submarine

    本論文給出了水下雙體運動流體動力干擾的數學模型、計算方法和試驗結果，目的在於研究水下無人平臺（ uuv ）接近母潛艇時的水動力干擾及其規律。
  12. However, the traditional dc motor uses brush so as to switch the phases, so there are relative mechanical frictions. then it comes out many fatal failing, such as yawp, spark, wireless disturb, etc. what " s more, its making cost is high, its maintain is also difficult, therefore its application is greatly limited

    直流電動機具有運行效率高和調速性能好等諸多優點，但傳統的直流電動機均採用電刷，以機械方法換向，因而存在相對的機械摩擦，由此帶來了噪聲、火花、無線電干擾以及壽命短等致命弱點，再加上製造成本高及維修困難等缺點，從而大大地限制了它的應用范圍。
  13. In the fourth chapter of the thesis, a study is made of the equation of interest rate - amount of circulating fund with infinite impulse disturbance in an open network. as far as linear and non - linear impulse disturbances are concerned, the conditions on which the system still remains stable under impulse disturbance and the conditions on which impulse disturbance leads to the changes of the stability of the system are discussed

    本文第四章研究了開放網路中具有無限次脈沖擾動情形的利率?流通量方程，對于線性以及非線性脈沖擾動，本章都給出了脈沖擾動下系統仍然保持穩定的條件以及脈沖擾動引起系統穩定性改變的條件。
  14. In chapter three, the momentum integral equations and their solutions of two - phase fluids in boundary layer are given and the no - disturbance solutions on the surface of vane are required. leading into the disturbance factor of no - dimension and thickness coefficient ks in boundary layer, the numerical method of finite approximation is used to calculate the boundary layer

    第三章給出了固液兩相流泵的邊界層動量積分方程及其解的一般表達式，並得到葉片表面的無擾動解；引入了無量綱擾動因子及邊界層厚度系數k _ ，給出了用於邊界層計算的有限次逼近的計算方法。
  15. The use of mpeg - 2 aac compression and multiplex technologies makes it possible to transmit signals through satellite, terrestrial and mobile means. as a unique feature, isdb permits user to receive a low - resolution edition in favour of better mobile reception. in an interference - free environment, viewers may choose to receive a high - resolution edition for better picture and sound quality

    它使用以mpeg - 2aac壓縮編碼與多工技術，可以透過衛星、有線與地面無線等不同傳輸媒體播送； isdb有一個較其它系統獨特的功能，就是聽眾可以選擇接收低解像度的訊號，來換取良好的流動接收效果，而在無干擾情況下，又可以選擇接收高解像度的訊號，來享受高質的視聽效果。
  16. It has been widely applied in personal communications, mobile communications and the field of broad band wireless access, and it has also been regarded as the main air access of the third generation mobile communications, because comparing with tdma and fdma, cdma has greater system capacity, higher frequency efficiency and stronger anti - interference ability, at the same time it still has the potential of solving the conflict of limited frequency resource and limitless user request

    相對于tdma ， fdma等多址技術而言，它具有系統容量大，頻帶利用率高，抗干擾能力強，保密性能好等優越性，同時還具有緩解有限頻帶與無線用戶需求之間矛盾的潛力，因而在個人通信，移動通信，寬帶無限接入領域都得到了廣泛的應用，也被普遍認為是未來第三代移動通信的主流空中介面技術。
  17. All models can predict the attached and little separation flows. for the high angle - of - attack separated flows with distinct history effects, the j - k and k - g models perform better than b - l model. for multi - body and multi - block mesh system, model k - g, which does not need the distance normal - to - wall, performs much better adaptability for complex geometries

    所有模型都可以很好地模擬附體及和小分離流動;對于具有明顯上游歷程效應的大迎角分離流動， j一k和k - s模型的模擬能力較強;對于多體干擾和多塊網格系統， k - s模型無需計算網格單元至物面的垂直距離，具有較強的適應能力，且計算效果最佳。
  18. Then, the designed controller was adjusted grounding on the working above. the results of the experiment show that the brushless dc motor servo system controlled by our controller runs well and has the advantages of no overshoot, better real - time quality, good responding and location precision

    調試結果表明所設計的電路具有工作穩定，抗干擾能力強等特點，經與驅動器和機械繫統聯調表明，使用本文所研製的控制器進行控制的無刷直流伺服電機系統運行性能良好，具有無超調，實時性、響應性好，定位精確等特點，滿足系統的設計要求。
  19. The team showed how these fields could be manipulated to flow around objects like a fluid, returning undisturbed to their original paths

    該小組演示了如何對這些場施行控制，使其像流體一樣繞物體流過，無擾動地回到其最初的路徑。
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