無定向系 的英文怎麼說

中文拼音 [wúdìngxiàngxì]
無定向系 英文
astatic system
  • 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...
  • 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...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  1. Ideal is the beacon, without ideal there is no secure direction without direction, there is on life

    理想系指路明燈，無理想，就無堅定咖方向，無方向，就無生活
  2. Broadcasting standards of marine radio beacon. differental global positioning system

    沿海無線電指向標差分全球定位系統播發標準
  3. This paper standards the system and demonstrates the operating rules from two aspects, which are the cost of human resource and the value of human resource. the fifth chapter designs a set of human resource accounting system to present difficulty which will take convenience to the organizations that attach importance to human resource accounting

    第五章主要針對目前應用中無方向性的困難，設計了一套具有一定切實可行價值的人力資源會計制度體系方案，以便重視人力資源的組織能夠有計劃、有步驟、有重點、有選擇地在會計實務中操作。
  4. The rationale of the tradition radio direction finding system is introduced. depending on the double - channels interferometer direction finding system manufactured successfully which have got a technical appraisal by technology committee of jiangsu province, the system of single channel interferometer direction finding is discussed particularly. the data and results of the experiment system are presented

    本文介紹了傳統的無線電測向的基本原理，在研製成功的雙通道干涉儀測向系統（已通過江蘇省技術鑒定）的基礎上，重點分析了傳統單通道干涉儀測向系統，並給出了實驗數據和結論以及存在的問題。
  5. Gwt ： she doesn ' t even think about the path of life. her steps wander, and she doesn ' t realize it

    呂震中本：生命之路徑、她不（不系經點竄翻譯的）修平；她的轍跡無定向而不自知。
  6. In the respect of neural networks control for non - linear and uncertain system, a review of some available control strategy is made. combining neural networks control and conventional control strategy supervised learning, no supervised learning and reinforcement learning neural networks self - studying and adaptive control systems for ship course control are proposed. the thesis studies particularly their characteristics

    在非線性和不確定性系統的神經網路控制方面，論文總結了一些現有的神經網路自學習控制系統，然後將神經網路和常規控制（例如pid控制、自適應控制、內模控制等）結合起來，根據船舶操縱的特點，詳細研究和分析了有監督學習、無監督學習和再勵學習的船舶航向神經網路自學習型自適應控制系統。
  7. With the trend of emphasis on concealable attack and forcible ruin to military supporting systems, passive locating methods can be seen as an important direction to the development of locating methods and perfection to existing locating systems. passive locating methods have the merits of far distance, concealable receiving and low probability to be detected, compared to active locating methods. so, passive locating system can help to improve viability and battle effectiveness of the whole system in the electronic war environment

    在越來越強調軍事支援系統隱蔽攻擊和硬殺傷的趨勢下，採用被動方式工作的無源定位方法作為定位方法發展的一個重要方向和對現有定位系統的完善，較有源定位方法具有作用距離遠、隱蔽接收、不易被對方發覺的優點，對于提高系統在電子戰環境下的生存能力和作戰能力具有重要作用，同時在航海、航空、宇航、偵察、測控、救援和地球物理學研究中有著廣闊的應用前景。
  8. 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。
  9. So its naissance brings a lot of hope and promotion to application and deploitation of milimeter and submilimeter - wave. because of gyrotron, s superiority of high peak power and average power among many known milimeter and submilimeter - wave gyrodevices, it has been paid much respect in the world for application in many areas such as plasma heating, rf accelerator, millimeter radar, dew and so on

    由於迴旋管具有在毫米、亞毫米波段其它器件無可比擬的高峰值功率、高平均功率的優越性，因此在受控熱核聚變等離子體的迴旋管加熱（ ecrh ） 、電子高能rf加速、雷達系統、通信系統以及定向武器（ dew ）等方面都有著廣闊的應用前景。
  10. The total rna was purified from the germ in the liquid by the guanidine isothiocyantehod method, then the total rna digested by dnase that had not rnase was used for rt - pcr. i change the magnesium ion dencity in the pcr system in order to optimize the pcr condition. at the end i selected the magnesium ion density as 1. 25 mm. the production of rt - pcr was inserted directionally into pgem ? z ( ampr ). the pgem ? z ( ampr ) was used to transform e coli jm109. i got a positive clone through culling and identificatin. the dna sequence inserted into pgem ? z ( ampr ) was sequenced and blasted with the cdna sequence of the # - mannanase mature peptide that got from genbank

    分取誘導培養液中的菌體，用異硫氰酸胍法提取總rna ，總rna再經無rna酶的dna酶處理後用于rt ? pcr 。在pcr擴增目的基因時，通過優選擴增體系，使鎂離子濃度為1 . 25mm時rt ? pcr可順利地獲得目的基因，並能定向克隆到載體pgem ? 3z （ amp ~ r ）中。用克隆載體轉化宿主大腸桿菌jm109 ，通過篩選獲取陽性克隆子，對陽性克隆子進行酶切與pcr鑒定，並對載體中插入的目的基因進行測序。
  11. A comparative study and simulation of different control schemes, for the brushless motor variable - speed system, is presented. the simulation results show that, with the outer speed loop based on conventional proportional - integral controller, the dynamic performance of the system is not content, while with intelligence controller, the performance improves, and with variable - structure control with sliding mode, the system response influenced slightly by the vary of the system parameters

    本文還對無換向器電動機雙閉環調速系統的不同控制方式進行了模擬比較，結果表明：採用常規的pi轉速調節器，系統的動態性能不是很好；採用簡單的轉速環智能控制器，系統的動態性能能得到一定改善；採用轉速環滑模變結構控制器，系統的響應特性受系統參數變化的影響較小，具有優異的動態性能。
  12. Simulation result shows that the scheme is valid to suppress directional strong interference for stbc mimo system although with some performance loss compared with the ideal case of non - interference

    模擬結果表明該方案雖然相對于理想無干擾的系統來說有一定的性能損失，但是能有效抑制空時分組碼mimo系統中的強定向干擾。
  13. This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented

    該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。
  14. Method amp; precision analysis of direction - finding and position based on satellites passive location system

    星載無源定位系統測向定位方法及精度分析
  15. In the simulation experiment, the whole system model is founded by the software matlab / simulink. using the stator active power computed from the maximal output power of the wind turbine as the reference value of vector control system, the result of experiment approves that the control strategy is true. not only the frequency of stator current is constant, but the control of stator active and reactive are decoupled, and the output power tracks the maximal power of wind turbine

    在最後的模擬實驗中，本文利用matlab軟體建立了系統各部分的模擬模型，選用與風力機最大輸出功率對應的定子有功功率作為矢量控制的參考值做了模擬實驗，並給出了模擬結果，驗證了定子磁鏈定向矢量控制策略的正確性：既保證了定子輸出頻率的恆定，又達到了有功功率無功功率獨立解耦控制的目的，同時還較好地跟蹤了風力機的最大功率輸出。
  16. Permanent magnet synchronous motor control system based on dsp for sensorless speed control

    的無位置傳感器永磁同步電機磁場定向控制系統
  17. A permanent magnet synchronous motor control system based on dsp for sensorless speed control

    的無位置傳感器永磁同步電機磁場定向控制系統
  18. A new bearingless induction motor system with five degrees of freedom is developed including a bearingless induction motor and a permanent magnet biased axial - radial magnetic bearing. the control strategy of bearingless induction motor based on air - gap flux orientation is introduced, and the decentralization pid control is used to maintain equal air in the five degrees of freedom. the digital controller guarantees rotor suspension steadily, and the speed of rotor reaches 3000 rpm

    闡述了無軸承異步電機的氣隙磁場定向控制策略，採用該非線性控制方法能使無軸承異步電機解耦成轉矩子系統和磁懸浮徑向力子系統，從而可以採用經典pid對這兩個獨立的子系統進行控制，首次實現了系統在0 3000rpm轉速范圍內的穩定懸浮。
  19. The contributions done are as follows : according to the mathematical model of doubly fed motor and the theory of vector control, a unit power factor of rotor control scheme is proposed. in the doubly fed adjustment system, in order to control magnetic torque of motor this scheme is designed by controlling the reverse direction between rotor voltage and current to keep the vertical direction between rotor current and flux. it is known from theoretical analysis that for partly decoupling this scheme is only effective under sub - synchronization speed, but not control the system and obtain steady state since speed adjustment system ca n ' t adjust the magnitude of rotor flux under sup - synchronization

    而傳統的無速度傳感器雙饋調速矢量控制系統，由於採用磁鏈定向方法，在同步速附近存在較大的工作死區，針對上述問題，本文做了如下的研究工作：本文從雙饋電機的數學模型出發，根據矢量控制的基本原理，提出了一種轉子側功率因數為1的雙饋電機矢量控制方案的設想，即在雙饋調速時採用轉子電流定向的方法，並控制外加轉子電壓與轉子電流始終反相，以保持了轉子電流與轉子磁鏈矢量垂直，通過控制轉子電流的大小來達到控制電機電磁轉矩的要求。
  20. Wireless features : network directed system selection

    無線電通信特徵:網路定向系統選擇
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