無控流動 的英文怎麼說

中文拼音 [wúkòngliúdòng]
無控流動 英文
uncontrolled 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...
  • 控 : 動詞1 （告發;控告） accuse; charge 2 （控制） control; dominate 3 （使容器口兒朝下 讓裏面的液體慢...
  • 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...
  • 流動 : 1. （液體或氣體移動） flow; run; circulate 2. （經常變換位置） going from place to place; on the move; mobile
  1. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永磁無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上，通過系統建模和數字模擬分析，分別針對航空低壓直流（ lvdc ）和高壓直流（ hvdc ）兩種電動機構用永磁無刷電動機，在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究，提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  2. In conclusion, it is primarily described that the expectable social and economical benefits of this mis are great, and the design can be fulfilled smoothly. the difficulty of this thesis is : not only think about the coordination each other synthetically on workers, equipments, technologies, data and user ' s priorities, different project and different continuation day, but also must ensure that it is agility, controllable and safe when the data be transmitted on internet or intranet

    本管理信息系統強調是針對無形的數據信息產品（ gis等海量數據）的生產管理信息系統，不是單純的統計計算，還要實施嚴密的控制，除需要綜合考慮人員、設備、技能技術、權限、工程、工期在計劃調度統計方面的協調性外，還需要強調海量數據信息產品的原始數據、半成品、成品在網路上流動的靈活性、可控制性和安全性。
  3. Recently, in the field of microfluidics system the drive mode of flow is a key problem, dc electroosmoticflow micropump bases on the principle of electroosmosis, which control the flow in the microchannel with electric field. recent years, it is more and more attracting people to realize it

    當前在微流控系統中液體的驅動方式是一個關鍵問題，直流電滲流微泵是基於電滲原理，利用電場控制通道中的液體流動，實現無運動部件的液體流動系統，近年越來越受到人們的重視。
  4. Making use of the packet data service and short data service of tetra, the mcs system enables front - line officers to use their portable radios and in - vehicle mobile data terminals mdts to exchange data messages with rcccs

    流動電腦信息系統利用地面集群無線電的封包數據服務和簡短數據服務，令前線警務人員可以使用手提無線電通訊機和車上的流動數據終端機與總區指揮及控制中心交換數據信息。
  5. 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。
  6. On the other hand, the rural - urban segregation caused by social system and the rural - social deviation of floating population made the migrants living out of the rural - urban social controlling system. in fact, they have been living in the cultural gap

    另外一方面，由於制度性原因而造成的城鄉隔離和流動人口客觀上脫離于鄉土社會控制之外的狀況，使流動人口既無法融入主流社會又游離于本土文化規范體系之外，他們實際上處于文化空白帶上。
  7. Servo control computer system / microcomputer universal testing machines, ozone tester, compression flexometer, computer hdt / vicat tester, digital impact tester, melt flow indexer, moving die rheometer, mooney viscometer, lamination of pvc plastic press tester

    伺服控制電腦系統微電腦式拉力試驗機，耐臭氧機，橡膠壓縮生熱試驗機，塑料用維卡熱變形，數位沖擊試驗機，塑膠熔體流動速率機，無轉子密閉膜腔硫化儀，門尼黏度試驗機等等。
  8. It is mainly made of reinforced pp with short time of self - priming and long life, a kind of zero - leakage pump for automation long distance control and fluid transmission of strongly corrosive liquid

    該泵以增強聚丙烯為主要材料，自吸時間短、壽命長，是自動化遠程控制和流動輸送強腐蝕液體的無漏泵。
  9. We also provide engineering services to the civil aviation department, supporting its air traffic control, radar and aviation control facilities located both within the airport and at other external sites. maintenance and operations support for government departments and the security forces include the police s trunk mobile radio handsets, fire services department s fire training simulator as well as the specialised e & m system at the government flying service s headquarters

    我們亦為民航署位於機場內外的航空交通控制、雷達及航空控制設施等提供工程服務。此外，我們亦為紀律部隊等政府部門提供機電維修及操作支援服務，包括維修警隊的集束流動無線電手機及政府飛行服務隊總部的專門機電系統。
  10. The flow equations are solved using finite difference technique. using body - fitted curvilinear coordinate system treated the boundary conditions. by iteratively solving the flow governing equation and the blade equation, the design of axial flow pump impeller in the quasi - three - dimensional rotational flow can be performed according to the angular momentum distribution, the blade which was designed in the lifting method, flow channel and the blade thickness given

    其次在流動無粘性、不可壓及考慮葉片厚度的條件下，依據葉輪內的流動特性，推導了葉輪內三維流動周向平均流動控制方程以及葉片方程；在貼體坐標系中，採用有限差分法求解流動方程和葉片方程；在採用升力法設計出的葉片作為初始葉片、給定葉片速度矩分佈、葉片厚度分佈和葉輪軸面流道幾何形狀條件下，迭代求解流動控制方程及葉片方程，實現了軸流泵葉輪的準三維方法設計。
  11. Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed

    論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
  12. Self - densifying high performance concrete is well - performing concrete with the good performance of fluidity, anti - segregation and filling - up - space. with its own gravity and without any vibration, it can automatically fill up the space in and between fixed shutters and form self - densified concrete structure of ideal dynamic property and durability, therefore, it can accelerate construction progress of a building, shorten the construction period, secure concrete quality and improve the building ' s durability. in the mean time, it is conducive as well for environment protection and effects remarkable social and economic efficiency

    自密實混凝土屬于高性能混凝土，它具有高流動性、高抗離析性、高填充性的性能，在自重作用下無需振搗，自行填充模板空間，形成自密實的混凝土結構，有良好的力學性能和耐久性能，可以加快工程建設進度、縮短工期、有效控制混凝土的質量、提高建築物及構築物的耐久性，並有利於環境保護，具有較高的社會和經濟效益。
  13. Design of brushless dc motor position servo systems using discrete variable structure control approach

    正弦波型直流無刷電動機位置伺服系統的變結構控制
  14. Apf can achieve dynamic compensation for harmonics and reactive current, and the compensation performance is not affected by the impedance of power grid, it has advantages as follows, fast response, high controllability and adaptability, etc. brief illuminations of advantages and disadvantages are performed to various harmful current detecting methods and control techniques

    它可實現對諧波和無功的動態補償，其補償特性不受系統阻抗的影響，具有響應快、可控性高、自適應性強等優點。本文對有源電力濾波器的各種諧波電流檢測法及控制方法進行了簡要的優缺點說明。
  15. Apf can achieve dynamic compensation for harmonics and reactive current, and the compensate performance is not affected by the impedance of the electric network, it has advantages as follows, fast response, high controllability and adaptability, etc. analysis is performed to existing main circuit topology, harmful current detecting method and current tracking control of apf in this paper

    有源電力濾波器可實現對諧波和無功的動態補償，其補償特性不受系統阻抗的影響，具有響應快、可控性高、自適應性強等優點。本文對現有的有源電力濾波器的各種主電路拓撲、畸變電流檢測和電流跟蹤控制方法進行了分析。
  16. Embracing advanced digital radio communication and mobile computing technologies, cciii is the mission - critical system that hkpf relies on to support the 999 emergency services in the three regional command and control centres rcccs

    Cciii對警隊的運作十分重要，系統運用了先進的數碼無線電通訊和流動電腦技術，以支持三個總區指揮及控制中心的九九九緊急服務。
  17. Collaboration between the two branches was epitomised by the ongoing design and development of the third generation command and control communications system ( cciii ), which will be rolled out in three phases between late 2004 and early 2006. embracing advanced digital radio communication and mobile computing technologies, cciii is the mission - critical system that the force relies upon to support the 999 emergency services in the three regional command and control centres

    資訊應用科和通訊科合作的最佳例子，是第三代指揮及控制通訊系統（簡稱cciii ） 。這個系統將由二四年年底至二六年年初分三個階段推出。 cciii採用先進的數碼無線電通訊及流動電腦技術，以支援警隊三個總區指揮及控制中心的999緊急服務，是警隊的關鍵資訊系統。
  18. In this paper, a dc brushless motor servo - control system based on dsp is designed

    本文設計了一種基於dsp的直流無刷電動機伺服控制系統。
  19. The neutral gas pressure is smaller where electric fields is stronger, which is independent of the instantanious electric polarity of the electrode and cause gas flow from high pressure region to low pressure region. so flow can be accelerated if electric field is properly adjusted, which is the mechanism of the active flow control

    場強越大的區域氣體靜壓反而越低，而與瞬間電極的極性無關，導致了氣體從高壓區到低壓區的流動，因此只要適當改變電場的分佈就可以使氣體產生加速，這就等離子體主動流動控制的加速機理。
  20. In this paper, the second chapter introduces the reducing idea of inertial manifolds and approximate inertial manifolds, and discuss th e similarity reduction of ks equation. the third chapter introduces the basical idea and theory of the exact linearization controlling, then use this methods to control chaos of an ordinary differential system chen equation and apply the exact linearization controlling method to control the chaotic behaviours, i. e. controlling the chaotic states to steady states

    本文第二章介紹了無窮維動力系統的慣性流形與近似慣性流形的約化思想，並討論了ks方程的直接約化方法。第三章介紹了精確線性化控制方法的基本思想和理論根據，並應用精確線性化控制方法對具有典型混沌動力學行為和性質的一個常微分系統chen方程進行混沌控制，將chen方程的混沌狀態控制為穩定狀態。
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