進汽端 的英文怎麼說

中文拼音 [jìnqìduān]
進汽端 英文
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  • 進 : 進構詞成分。
  • 汽 : 名詞1. （由液體或某些固體變成的氣體） vapour2. （水蒸氣） steam
  • 端 : Ⅰ名詞1 （東西的頭） end; extremity 2 （事情的開頭） beginning 3 （門類; 方面） item; point 4 （原...
  1. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  2. The results of calculation and measures show that the low frequency of steam pipelines vibration fastens on 4. 3 to 4. 5 hz and 9. 5hz, the low modes fastens on one - steps curl in vertical plane and its plane of each steam pipeline and one - rotation along with the line connecting the port circling main steam gate and the horizontal port of unit. the modes of # 3 and # 4 main steam conduits occupy the majority of low steps modes ( the five of the first eight phases ), except for the first phase rotation vibration, the maximal distortion of other low steps vibration modes are all caused by the vibration of erect pipelines of cylinder

    計算和實際測量結果表明：導汽管低頻振動以4 . 3 - 4 . 5hz 、 9 . 5hz頻率為主，管系的低階模態以各導汽管在垂直導管平面和平面內的一階彎曲、以及繞主汽門處端點與水平段汽機端連線的一階扭轉為主， # 3 、 # 4導汽管的振動模態占低階模態的多數（前八階模態中的五階） ，除一階扭轉振型，導汽管的其它低階振動模態中都是進汽缸立管的下端振動變形最大。
  3. The competition in automobile industries has shifted from technology and quality to customer services. distribution channels modes is becoming an important factor in competition. the relationship between the manufacturers and the distributors and the clients has become inseparable

    汽車行業的競爭已由技術競爭、質量競爭進入服務競爭階段，作為服務的載體和銷售鏈的終端，分銷渠道的建設已成為汽車企業競爭優勢的重要來源，決勝在於終端已成為各汽車公司的共識。
  4. The recent studies in our group on the properties of nuclei at extreme conditions, i. e. nuclei at high densities and high temperatures, their possible liquid - gas phase transitions and the multifragmentation are reviewed

    摘要對近年來本小組所研究的極端條件下原子核，即高溫高密原子核性質及其可能出現的液汽相變和多重碎裂等進行了綜述。
  5. The bigger no. 5 6 high pressure heater ' s difference temperature is another factor. the paper detaily analysed the reasons that turbine ' s relative intra - efficiency and condenser ' s vacuum lowering and no. 5, 6 high pressure heater ' s difference temperature rising. it using the thermal system equal quantity analysis method, calculated the value that turbine unit thermal efficiency had been lowered

    論文中對汽輪機相對內效率低、凝汽器真空低於設計值以及# 5 、 6高壓加熱器上、下端差大於設計值的原因進行了詳細的分析，並將各因素對整個熱力系統效率降低的影響程度進行了定量的分析和計算。
  6. The paper analyzes the features of the design of shijiezhichuang station on shenzhen subway line 1 in respect of the choice of transfer mode, the scale of transfer nodes reserved in advance, openings in the ceiling, utilization of the upper space above the region of crossover switch and the distance between the east end of the station and the existing road tunnel

    摘要對深圳地鐵1號線世界之窗站設計中的特點進行分析，包括車站換乘形式的選擇，預留換乘節點的大小、車站頂板的開孔、折返線道岔區上部空間的利用、車站東端距既有汽車隧道的距離等。
  7. In dcs, configuration is used to accomplish the on - line calculation of main stress of the orifice of the drum ' s central downcomer. in mis, the client / server structure based on the database is adopted. the program in server pretreats the data from dcs and sends them to the database, while the programs in client accomplished the final treatment and displays the result

    在dcs側，通過組態的方法，在不增加新測點的前提下實現了汽包集中下降管管孔處主應力的在線計算；在mis側，採用基於數據庫的客戶機/服務器結構，服務器端程序對從dcs系統來的數據進行初步的處理並存儲在oracle數據庫中，客戶機端程序完成數據的最終處理及結果的顯示
  8. Aimed at the rotor bearing system of 300 mw steam turbogenerator set and on the basis of establishing its concentrated general model with 8 supportings and 9 nodes, a study was carried out on the bending vibration response of the most left end surface of shafting and of the right end face of generator

    摘要針對300mw汽輪機組轉子軸承系統，在建立其8支承9節點集總模型的基礎上，對軸系最左端面和發電機右端面的彎曲振動響應進行研究。
  9. However, the japanese industrial products are mainly high - tech products such as automobiles, home appliances, semiconductors and so on ; while our china world factory produces mainly those low - end products such as textiles, machine and electricity products, while high - tech products or core technology in traditional industrial products have to be imported. this is why our china world factory does not match the reality well

    然而不同的是，日本在世界市場上的主要工業產品是汽車、家電、半導體等高技術含量的產品，而中國「世界工廠」則是以低端的紡織、機電產品為主，高科技產品以及傳統工業產品中的核心技術則需要進口，這也正是中國「世界工廠」底氣不足的原因所在。
  10. The paper recounts implementing thoughts of this system and advances some improved algorithm in pretreating image, for example image enforce, segmentation of image and so on. we get rather satisfying effect by using these algorithms. in initial phase of the system, in order to get the information of field and automobile " s edge, the paper introduces detecting algorithm to confirm end - points of field, improved hough algorithm, and worm - following algorithm to pick up edge. in real - time checking phase, the most importance aim is to identify sign circles, so we advance a qiuck searching algorithm based on threshold

    文中詳敘了系統的實現思路，對于預處理階段採用的圖像處理技術，如圖像增強、圖像分割等，提出了一些相應的改進演算法，取得了較滿意的處理效果；在系統初始化階段，為了獲取場地的端點信息和汽車邊緣信息，分別介紹了自動確定場地端點位置的檢測演算法、改進的hough變換演算法和提取區域邊緣的「蟲隨法」 ；在系統的實時檢測階段，最主要的目的是識別檢測標志圓，為此，文中提出了基於閾值的快速搜索演算法，有效的提高了目標物體區域的提取和識別速度。
  11. In many years, automobile industry of our province always is at the low - end position of value chain of the international labor division in joint investment with foreign enterprises, general development profit level is not high, competitiveness in production cost and product price are left behind in the world, so we always obtain processing profit instead of excess profit ; design and production technology of entire cars and component products are left far behind with international advanced level, development of components is severely lagging from the development of the entire cars, especially transnational companies always control procurement of components with high technical content and added value, so we have to import components with key technology

    多年來我省汽車產業在與國外企業合資中一直處于國際分工價值鏈的低端位置，總體發展利潤水平不高，生產成本與產品價格遠未達到與國際接軌的競爭實力，我們獲得的一直是加工利潤，而不是超額利潤；整車和零部件產品設計和製造工藝上同國際先進水平尚有較為明顯的差距，零部件的發展嚴重滯後於整車的發展，尤其是跨國公司一直控制著高技術含量、高附加值零部件的采購，使具有核心技術的零部件一直從國外進口。
  12. The structural design of current vehicle front units has to account for an increasing number of constraints : improvement of real world performance in safety for occupants and others road users, perform in the various ratings and meet future regulations. therefore the structural car design is the result of a compromise between pedestrian protection, car to car compatibility and self - protection

    5 .總結了車輛前端結構安全設計方法，形成了車輛前端結構安全設計流程，並進行了車輛前部安全性能的試驗和數值模擬的對比分析，為今後的汽車前端安全設計提供借鑒和指導。
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