速度不穩定性 的英文怎麼說

中文拼音 [sùdùbùwěndìngxìng]
速度不穩定性 英文
speed instability
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  • 穩定性 : antiwhip
  • 穩定 : 1 （使穩定） stabilize; steady 2 （穩固安定） stable; steady 3 （物質的性能不易改變的作用） stabi...
  1. This paper mainly discusses about the acceleration response of the artillery that is caused by the plainness causes under traveling condition. and according to the system aspect of the matching between the tractor and artillery which composes the artillery train, it also presents the characteristics of the steering, braking stability and manipulating stability which affects the artillery moving maneuverability

    本文在火炮設計領域首次對火炮牽引列車系統進行動力學分析，重點研究了火炮牽引行駛狀態下的路面不平度對火炮的加速度響應，並從牽引車與火炮匹配組成火炮列車的系統角度，研究了影響火炮行駛機動性的轉彎特性、制動穩定性和操縱穩定性。
  2. As the world economy goes to reginonalization, collectivization, the district economy is be coming more and more important in the world economy. the members of all the district economy organization make the inner - reginal trade, the movement of elements, the speed of economy increasing constantly because of the advantages of arens, resources and mutual supplements of economy structures, meantime, the members, who is not in the exclusivism andtrade protectionism, so china must make strong economic relationship between the countries ane areas nearby in order to develop the economy stably and taking eonomic cooperation and join the system of inter - reginal economy cooperation

    隨著世界經濟呈現出區域化、集團化的趨勢，區域經濟圈在世界經濟中所佔的地位也在逐步提高，各區域經濟組織成員由於地緣、資源優勢、經濟結構互補等原因，使得區域內部的貿易、要素流動、經濟增長速度不斷增加，同時，對于區域經濟組織外的非成員則不可避免地造成排外主義及貿易保護主義。所以，對中國而言，為促進經濟的持續穩定增長，就必須加強與周邊國家及地區之間的經濟往來，同時要進行全方位、多層次的區域性經濟合作，進而參與到國際區域經濟合作的體系中。
  3. In the research, a set of simulation equipment is developed to examine the drivers " static and dynamic fatigue. recur to the apparatus, contrast and control experiment are made among different ages, workload intension and workload factors group. the endings summarize as following : ( 1 ) driving sensation fatigue investigation ( investigation of psychological and physiologic index and contrast investigation of fatigue ) ; continuous driving load and discrete driving load investigation of fatigue

    ? ?門）駕駛疲勞平衡穩定性是通過在力檢測臺上描繪人體重心軌跡的方法，提出檢測駕駛員疲勞平衡穩定指數，在不同狀態下（傾斜度15 30 『以及閉目等狀態下）對不同負荷、不同年齡分別進行測試，建立駕駛疲勞客觀測試評價體系； n ）經實驗室研究與現場調查，通過對駕駛疲勞與駕駛時間、駕駛速度等關系的研究，提出了不同年齡、不同條件下的最大連續安全駕駛時間標準，日駕駛時間標準，最大安全行車速度標準等。
  4. By hydraulic modeling, this paper describes studies on the stability of a floating bulkhead operating in standing water and flowing water, and it ' s hydrodynamic stability characteristics that distinguish in standing water from in flowing water ; and direct measurements of the forces acting on the model floating body during floating and sinking is taken. as a result, the rotation stress curves are produced and analyzed ; to provide data for optimum operation schedule analyses of the sluice, the relationship of the impact forces acting on the side wall of the gate and the running speed is studied ; the reasons of unstably uplifting of the bulkhead are discussed and the method to solve the problem is also given in this paper

    本文結合常州新閘防洪控制工程水工模型試驗，系統分析了浮箱門在靜水和動水中的穩定性及其影響因素，指出靜水穩性和動水穩性的不同特點；試驗測定了浮箱門動水運行時的受力情況，給出並分析了定位過程轉動力的變化過程曲線；根據浮箱門啟閉速度與門體和岸墻之間撞擊力大小的關系，選擇合理的動力設備，為設計和工程實踐提供可靠依據；分析浮箱門難以穩定上浮的原因，並給出解決方案。
  5. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  6. There have some problems, for example, share the data source of all sort of the measurement of equipment, develop new application system quickly, have high stability and maintain convenient, which must be resolved immediately in the measurement and control system now used, because of the widespread and rapidly development of computer technology, constantly development of automatically industry and the fast evolution of soft technology

    隨著計算機技術的迅猛發展和普及，工業自動化程度的不斷提高，軟體技術的迅速發展，現有的測量與控制系統有一些急待解決問題，如各種測量設備的數據資源的共享，快速開發新應用系統，系統穩定性高，維護方便等。
  7. The rayleigh - taylor ( rt ) instability in cylindrical and spherical geometries was analized in this thesis, based upon velocity potential theory

    本論文利用速度勢理論對柱和球幾何中不可壓縮流體的rayleigh - taylor （ rt ）不穩定性進行了研究。
  8. At linear stage, the theoretical growth rate for the rt instability in cylindrical and spherical geometries was enhanced ( or reduced ) due to the decrease ( or increase ) in the perturbation wavelength during an implosion ( or explosion ). even in the absence of an acceleration the perturbation could grow in the convergent geometries. the amplitude growth rate was proportional to the cube of the convergent ratio in spherical geometry and to the square of the convergent ratio in cylindrical geometry

    在線性階段，已有的研究表明：一方面，在內爆（或外爆）過程中擾動波長變短（或變長） ，使得不穩定性的增長率變大（或變小） ；另一方面，即使不存在界面加速度，界面運動仍然可能導致擾動幅度的增加，柱幾何中擾動幅度的變化速率正比于界面收縮比的平方，球幾何中擾動幅度的變化速率正比于界面收縮比的三次方，並且擾動幅度的變化方式（增加或減少）只與初始時刻擾動幅度的增長速率（正或負）有關，而與界面的運動方向（向內或向外）無關。
  9. Because of the resonant interaction between the reb electrons and the wave excitated by the embp instability, the reb electrons cannot transport continuously, but in form of current clumps. the transport velocity is close to the phase velocity of the wave

    因為embp不穩定性所激發的波和束流電子之間的共振相互作用，束流電子不是連續地傳播，而是以電流團的形式傳播，傳國防科技大學研究生院學位論文播速度接近於波的相速度。
  10. In chapter 3, spatiotemporal instability of ultrashort pulses results from the interplay among diffraction, group - velocity dispersins and nonlinearity. we use the model proposed by brebec et al.,

    第三章：超短脈沖的時空不穩定性是衍射、群速度色散和自相位調制三者之間的相互作用導致的。
  11. Even with electronic trading and limited guarantees of execution speed, the price for fills on market orders is far from certain

    即使藉助于電子交易方式和交易速度的有限保證，確定買進或賣出的市場價格也具有極強的不穩定性。
  12. Finally, compared with the 2d result, the synthetic jet that 3d numerical simulated has a definite direction. the 3d result, however, has a much smaller fluctuation owing to the span - wise instability which created a breakup of coherent vertical structure into smaller scales, it therefore compares more favorably with the measured data in tests

    三、三維模擬結果顯示合成射流的方向性極佳，與二維模擬相比較，三維數值模擬的速度波動較二維模擬要小，旋渦的相干結構衰弱，這是因為三維模擬考慮了流動的橫向不穩定性，這更加接近實際情況。
  13. This algorithm has high implementing speed and good reliability, because it makes use of opengl ' s high ability of process display buffer, deep buffer and stencil buffer efficiently. unlike the isometric projection algorithm this algorithm can display workpiece from any direction. 5

    我們充分利用了opengl提供的高速處理顏色緩存、深度緩存和模板緩有的功能，使得實現的演算法不僅運行速度快、穩定，而且克服了等軸測投影演算法不能在任意角度顯示工件加工過程的缺陷，具有一定的先進性。
  14. Then an empirical analysis of money supply is made from the perspectives of the quantity of money supply, monetary base and money multiplier to demonstrate the endogeneity of money supply. both the relation between money supply and economic indices and money liquidity are discussed and the function of money supply as intermediary goal of monetary policy is doubted

    在對貨幣總量的研究中，本文分析了各層次貨幣供應量和經濟變量之間的關系，並對反映金融深化程度的m _ 2 gdp指標作了回歸分析，揭示了貨幣供應量作為貨幣政策中介目標的不足：基礎貨幣投放總量表現出內生性，貨幣乘數和貨幣流通速度不穩定。
  15. The two - dimensional axisymmetric subsonic - transonic - supersonic flow in an experimental arcjet thruster is simulated numerically using flux vector splitting method. the profiles of density, velocity, temperature, pressure and mach number can be obtained by the computation. the computation grid and some computed results are given here. the test equipment such as power supply system, ignition system, propellant supply system, arcjet thruster, thrust measuring device and vacuum system are introduced briefly. some working phenomena of the arcjet are observed and discussed. three different kinds of instability appeared in the process of the experiments. except some important parameters are measured, it is found that the operating stability of argon is better than that of nitrogen

    對一實驗電弧加熱式發動機二維軸對稱亞跨超音速流動進行了數值模擬，所採用的方法是矢通量分裂演算法.通過計算可以得出密度、速度、溫度、壓力和馬赫數的分佈.給出了計算所使用的網格和一些計算結果.簡要介紹了實驗所使用的設備，如電源系統、點火系統、推進劑供給系統、電弧加熱式發動機、推力測量裝置和真空系統.對所觀察到的一些工作現象進行了討論.有三種不同的不穩定性出現于實驗過程.除了所測量的一些重要參數，通過實驗發現氬比氮工作更穩定
  16. The rapidity and pervasiveness of change brings both unparalleled new opportunities and an unprecedented degree of insecurity

    整個世界的變化速度和廣泛性將帶來空前的機遇，同時也會帶來空前程度的不穩定性。
  17. Since the data is local ( the computer ' s cd - rom drive ) rather than remote ( the atlas website ), access speed and reliability is greatly improved

    並且由於數據是從本地（計算機光驅）而不是從遠程（圖庫網站）獲取，所以訪問的的速度和穩定性均有了顯著提高。
  18. In this thesis, the database of gps vehicle monitor information management system is designed, the design of the man - machine conversation interface and the software of the database server, also the software of the mid - ware are accomplished. an improved and logical three layer structure framework is used to utilize the resource of the system efficiently, balance the load, and improve the expansibility of the system ; powerful oracle database is used as background database to provide high performance service to the system which has numerous users and large - scale ; encrpytion arithmetic of communication data is designed to ensure the safty of gps vehicle monitor information management system communication ; the usage of fire wall, system privilege management and data backup improved the safty of the information management system database ; high usability design is realized by oracle data guard ; optimization of the information management system made the whole gps vehicle monitor system persistent, stable and high quality

    本文針對原有gps車輛監控系統響應速度慢、穩定性和安全性不高的不足，提出了一種以改進的三層結構體系為系統架構，以oracle數據庫為后臺的gps車輛監控信息管理系統設計方案，設計了gps車輛監控信息管理系統數據庫，完成了gps車輛監控信息管理系統人機界面、中間件及數據庫端的軟體設計。系統架構採用改進的三層結構體系，其邏輯結構清晰，有利於系統資源的有效利用，均衡負載，提高系統的可擴展性;后臺數據庫採用功能強大的oracle數據庫，可以提供大規模、多用戶的高性能服務;通信數據的加密演算法有利於確保gps車輛監控信息管理系統的通信安全;防火墻的使用、系統權限管理以及數據的備份和恢復等有利於提高gps車輛監控信息管理系統數據庫的安全性， oracledataguard的使用有利於提高系統的可用性;系統的優化，為系統持續、穩定、高質量運行創造了有利條件。
  19. Velocity space instability

    速度空間不穩定性
  20. The most amplified is centered around the inflection point of streamwise velocity profile, which is interpreted as inflectional instability and has highly amplification rate

    其中一個具有很大放大率的模態，位於流向速度型的拐點處，屬于慣性不穩定性。
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