空化極限 的英文怎麼說

中文拼音 [kōnghuàjíxiàn]
空化極限 英文
cavitation limit
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 空化 : cavitation空化機理 cavitation mechanism; 空化噪聲 [聲學] cavitation [aeration] noise; 空化作用 [化學] cavitation
  • 極限 : 1 （最高的限度） the limit; the maximum; the ultimate limit; limitation; extremity; tipping point...
  1. With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed

    本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。
  2. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  3. In the last part of the paper, we derive the euclidean equation of motion of the magnetic vector in a theoretical magnetic film consisting of biaxial - anisotropic molecular ferromagnets, which is reduced to the 2 + 1 dimensional sine - gordon field equation in the strong anisotropy limit. we obtain various domain structures which are the static solutions of the sine - gordon field equation

    最後考慮由雙軸各向異性分子磁體形成的理想無界膜，在強各向異性極限下，採用半經典近似方法，將磁化矢量的時空運動方程約化為2 + 1維sine - gordon場方程，從而得到各類疇結構。
  4. With the rising demand ever, the orbital resource and frequency spectrum resource for gso communication satellite has been almost fully exploited and utilized, by means of cross polarization, multi coverage, and orbital space reduction

    隨著通信需求的增長，人們採用極化復用、空間復用和縮小軌位間距等手段，對靜止衛星軌位和無線電頻譜資源作了接近極限的開發利用。
  5. The solution of the interior problem has been obtained by the fem method. ensuring the continuity of the tangential electric field across the aperture plane, the electromagnetic e and h has been gained

    分別採用有限元法和矩量法分析封閉腔體和半無限空間的電磁場，在孔徑面上進行邊界條件匹配，從而得出極化雙工柵中的電磁場特性。
  6. At the same time, the mathematical models of the electric field and the flow field distribution were established from the theory of electrostatic enhancement of heat transfer. employed finite differential method and over - relaxation iteration method, according to certain boundary conditions in the wire - plate electrode space, the electric field and the flow field in the wire - plate space were numerically simulated under different initial velocities of r11 stream and different magnitudes of applied voltage. the calculation results agreed with theoretical analysis satisfactorily

    同時從靜電強化換熱理論出發，建立了表徵線板電極間的電場和流場分佈的數學模型，並根據線-板電極間的邊界條件，利用有限差分法和超鬆弛迭代法，分別就不同氣流初速度和不同外施電壓的情況下，對線-板空間的電場和流場進行了數值模擬，計算結果與理論分析基本一致。
  7. These equipments are vacuum system which is made up of diffusion pump, pipes, water - cooling baffle and rotary vane pump ; the whole chamber, wall and water - cooling wall are made of stainless steel ; the lower part is equipped with cool water sleeve which can fast take out air to gain 10 - 4 or higher vacuum, therefore they are widely used in high - tech fields, such as the platting, electronic, metallurgy, chemical engineering, atomic energy, materials and medicine etc

    Kt系列擴散泵機組是由凸腔擴散泵管道水冷擋板機械泵等組成的高真空系統，整個泵腔泵壁及水冷壁全部由不銹鋼作成，下部配有降溫用急冷水套，抽氣速度快，極限真空高，它可使被抽容器獲得10 - 4或更高的高真空，因此廣泛適用於鍍膜裝飾電子冶金化工原子能材料醫藥等等各種高新技術領域。
  8. Secondly, through the examination and observation of the structural model of the cast - in - place pre - stressed compound floor slab system, under the normal usage load, the normal usage limit - state and the failing load, we have validated the space working - feature of the structural model under variable loads, including the rigidity, the crack, failing - state, failing load and the stress variation of the pre - stressed bar, and so on

    其次，通過對該體系的結構模型在正常使用荷載、正常使用極限狀態和破壞狀態下的試驗研究，驗證了現澆預應力復合樓蓋體系模型結構在各種荷載作用下的空間工作性能，包括剛度、裂縫、破壞形態、極限承載力及預應力筋的應力變化狀態等。
  9. Agriculture in yanbian has come into a new step experienced more than twenty years of reform and opening policy. it mainly improves qualities and optimize the structure and increase the income of famers. it also stresses on combination of traditional investment and capital - intensive and technology - intensive. but the core of " three agriculture " problems now which famers faced are the magrinal contribution of non - agriculture ' s income will less than before. the space is limited by going a step further in enhancing the prices of agricultural produce

    延邊農業經過改革開放后20多年的發展現已進入了以提高品質、優化結構和增加農民收入為主，注重傳統投入與資本集約和技術集約相結合的優化發展新階段。但是現階段「三農」問題的核心? ?農民增收面臨著非農收入的邊際貢獻將會越來越小、進一步提高農產品價格的空間極為有限，貿易條件改善對增加農民收入的作用將逐步減弱、國家對農業和農民的補貼狀況在短期內不可能有大的改變的格局。
  10. As a engineer, i have researched the technology of the deposition of the pyrolytic graphite grid ’ s rough in detail and deeply, in order that xuguang electric ltd. co. achieves the producing from the deposition of the pyrolytic graphite grid ’ s rough to grid. in this research, propane and nitrogen gases has been used in the deposition of the pyrolytic graphite grid ’ s rough at about 1800 and in vacuum

    為了使旭光電子股份有限公司順利實現從熱解石墨柵極毛坯沉積到柵極成品的生產，本人作為工藝研究人員，對熱解石墨柵極毛坯沉積工藝進行了詳細、深入的研究。在本課題研究工作中，採用了丙烷有機碳氫化合物氣體和稀釋用氮氣、氬氣，在高溫1800左右的真空條件下試驗研究了熱解石墨柵極毛坯的沉積。
  11. Through adjusting the controlling fuel injection - - regulations of the two injection timings and proportions, an adequate air and fuel charge stratification was produced - we call it quasi - homogenous mixture and the lean burn was successfully realized in a product 4 - valve s. i. engine whose structures are n ' t changed at all. investigations show that twice electronic fuel injection can make the lean limit ( a / f ) increase by 1. 5 - 2 units ; the fuel consumption and exhaust emissions are improved remarkably, in partial load, compared with the product 4 - valve s. i

    研究結果表明：兩次噴油可拓展發動機稀燃極限1 . 5 - 2個空燃比單位，最高達23 . 5 ；發動機燃油消耗同原電噴發動機相比可降低19 . 1 % ；整個空燃比范圍內，經過優化的兩次噴油稀燃的最低油耗較單次噴油稀燃下降6 . 5 %左右，各種排放物機內生成量均有大幅度下降。
  12. Ultimate 3d aerial skiing chinese version

    極限空中滑雪3d漢化版
  13. On the basis of construction technique of large diameter bored hollow pile of prestressing force concrete, through simulation test, this paper simulates the interaction of pile with side mediator and pile with end mediator respectively under different conditions of injected cement paste, analyses the changing regularity of ultimate skin friction in different depths and different mediators, and also studies the changing regularity of end resistance in different end mediators

    本文在對大直徑鉆埋預應力混凝土空心樁的施工工藝分析研究的基礎上，通過室內模擬試驗，分別模擬樁與樁側、樁端介質不同注漿情況下的相互作用性狀，分析了樁側介質變化時不同深度處樁側極限摩阻力的變化規律和樁端介質變化時樁端承載力的變化規律。
  14. The thesis, in the probability analysis and computation, considers the failure history of space frames and trusses, adopts the bound criterion and algorithms on the base of system ' s critical strength, and introduces the soft self - adaptation control bound into the identification of dominant failure modes ; at the same time, with the incremental load method and differential equalized recursive method, computes the limit - state function of failure mode and probability index precisely under no leaking the dominant failure modes

    文中在可靠性分析和計算部分，考慮空間剛桁架結構系統的失效演化歷程，採用基於系統臨界強度的約界準則和約界演算法，將柔性自適應控制邊界引入失效模式識別過程；同時，用荷載增量法和微分等價遞歸演算法相結合，確保在嚴格不遺漏主要失效模式的情況下，快速準確地求解失效模式的極限狀態方程和可靠度指標。
  15. On the basis of the experimental research, calculation method of stiffness in different stage, ultimate bearing capacity of cavity sandwith panel infill steel frame are discussed and aseismic design method on the new lateral resistant system are concluded. this model is implemented into the analysis on the experimental steel frame and the results agree well with experimental results. the design method is presented according to the interacting of infill and frame

    在試驗研究的基礎上，建立了空腔砌塊復合墻體鋼框架體系考慮退化的三線型恢復力特性模型，提出了模型各受力階段的剛度計算公式、極限承載能力的計算方法和抗震計算方法，將該模型的計算方法用於本次試驗鋼框架，所得出的計算結果與試驗吻合良好。
  16. This article is to design a skew - rpyr mechanical wrist not only with comparatively high workspace and dexterity but also the capability of circumventing the mechanism singular position effectively while operation. the dynamics analysis and calculation will become the basis of practical control. a short review of the development in wrist design is introduced in the paper, and the development of the idea of the skew - rpyr wrist put forward is necessary

    斜四關節手腕（ skew - pryr ）具有較大運動空間和較高的靈活度，通過運動學的分析和優化使該手腕具備在運動中有效迴避機構奇異和手腕關節運動范圍極限的能力，並且用拉格朗日法對手腕的動力學的分析和計算為以後實現控製作了準備。
  17. It is brought forward for the first time that in summertime the pco2 of the surface water near the changjiang estuary, whose salinity is less than 20, decreases dramatically from upwards of 800uatm to downwards of 300uatm within the range of less than half one latitude, suggesting a transformation of a strong co2 source to a co2 sink in a finite space

    首次調查得到，夏季長江口附近鹽度20區域的水體極高的pco _ 2 （最高測得800 atm以上）在不到半個緯度的范圍內遞減到300 atm以下，即由一個很強的大氣co _ 2源，有限的空間尺度范圍內變成為匯區，有著極大的梯度變化。
  18. Applications of face - fired boilers are not so many on our country ' s industry, so the researches on it, especially on high - duty boilers ( for example 330mw ), are very limited. and further study is needed to make up for domestic vacancy about this. author of this paper has done some researches on 330mw boiler both in theory and experiments by applying computer aided test ( cat ) principles

    對沖燃燒鍋爐在我國的應用並不是很多，所以對它所進行的研究極為有限，特別是對于較大容量（如330mw ）的機組，相應的試驗和數值計算都很少，很多的問題仍等待進一步的研究，本文正是為了填補國內的空白，從理論和試驗的角度，運用計算機輔助優化數值試驗原理和方法，對330mw對沖鍋爐進行研究。
  19. It is noticed that the definitions of limit and difference of waveforms reflect path sensitization in a circuit. it is interesting to note the consistency between this theory and the reality. to deduce the properties and applications of converse operations or generalized converse operations of waveform operations in waveform space

    主要表現在：定義了波形空間；在波形空間中定義了與實際問題相符合的距離，極限，延遲運算元；運用布爾運算推導出了波形空間是banach空間；波形的極限和差分的定義反映了電路中的通路敏化；推導出了波形空間中常見波形運算的逆運算或廣義逆運算及其在電路中的性質並在通路敏化方面得到了一些應用。
  20. With the deepening of the integration of international economy and the rapid progress of information technology, great changes have taken place in accounting science, including great development of the objects of accounting, more uncertainty of accounting, more confuse distinction among accounting entity and mutable environment of accounting

    隨著國際經濟一體化的深化以及計算機技術和網路技術的進步，打破了企業經營時間和空間的限制，極大拓展了會計對象的內涵與外延，同時也增加了會計的不確定性，給會計學的發展提出了許多新問題。
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