流體流入角 的英文怎麼說

中文拼音 [liútǐliúrùjiǎo]
流體流入角 英文
fluid inlet angle
  • 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...
  • 體 : 體構詞成分。
  • 入 : Ⅰ動詞1 （進來或進去） enter 2 （參加） join; be admitted into; become a member of 3 （合乎） conf...
  • 角 : 角Ⅰ名詞1 （牛、羊、 鹿等頭上長出的堅硬的東西） horn 2 （古時軍中吹的樂器） bugle; horn 3 （形狀像...
  • 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
  • 流入 : inflow; influx; indraught流入角 fluid inlet angle; influx angle; 流入量 influx; inflow
  1. In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design

    第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。
  2. According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions

    進而導出了非均相結構電流變液在外電場與光場交互作用下旋光角與（入射線偏振光振動方向與外加電場方向間夾角）及參數（為外加電場e 、分散顆粒介電常數、體積分數、絕緣油介電常數、位置矢量（ ? ）等量的函數）的西北工業大學應用物理系碩士學位論文摘要理論表達式。
  3. Insert a soft, blunt instrument into the valve end marked with the flow arrow and push the ball out of the valve end marked with the adj. arrow

    用一個柔軟的、無稜角的工具插入閥門上標記flow （流向）箭頭的埠，將球體從閥門上標記adj （調整）箭頭的埠推出。
  4. The feasibility that kaufman ion source is applied in reactive ion beam etching is discussed. etching characteristics of materials, including pr, cr, quartz, are investigated. the etch rate and mechanisms of such materials are measured and analyzed as a function of ion energy, ion beam density and ion incidence angle in pure ar and chf3, respectively. the etch rate has shown a square root dependence on variation versus

    深入研究了光刻膠、鉻薄膜、石英等光學材料離子束刻蝕特性，分別以ar氣和chf3為工作氣體，研究光刻膠、鉻薄膜、石英等的刻蝕速率隨離子能量，束流密度和離子入射角度的變化關系，得到刻蝕速率與影響因素的擬合方程，為掩模的製作工藝路線提供了實驗依據和理論指導。
  5. In the light of the fundamental method of analysis of the theories concerning enterprise competitiveness, this essay deals with the study on the enterprise competitiveness in lanzhou railway bureau. first, it makes a holistic analysis on the competitive environment and elaborates the status quo of development ; second, it establishes the index system for the assessment of the enterprise competitiveness in lanzhou railway bureau, and makes general and comparative assessment of the enterprise competitiveness, and then a conclusion is drawn ; lastly, it presents the ways and solutions to upgrade enterprise competitiveness in lanzhou railway bureau, based on the analysis of causes for the conclusion. the method of analysis in this essay is valuable in reference for the study of other enterprises in the same industry

    首先，對蘭州鐵路局競爭環境進行了宏觀環境分析和競爭環境分析，認為在現階段蘭州鐵路局擁有良好發展環境，同時也面臨著替代性運輸方式、潛在競爭對手和現代物流發展的強大威脅；其次，對蘭州鐵路局的發展現狀進行了闡述，從運輸生產、經營管理、市場競爭等不同角度進行了深入分析，認為現階段蘭州鐵路局在西北運輸市場仍然佔有一定優勢；第三，運用企業競爭力評價理論建立了蘭州鐵路局競爭力評價的指標體系，並採用模糊數學和dea評價方法對蘭州鐵路局競爭力進行了總體評價和比較評價，得出了蘭州鐵路局競爭力不強的結論，並針對評價結果進行了原因分析；最後，提出了蘭州鐵路局競爭力提升的思路和對策。
  6. Firstly this paper points out that the mainstream value investment theories limits to some stratifications, such as market, business or product, technology and administrative levels, but it neglects the organizational idiosyncracy of the crux of the value factor, and it ' s better essence, better deep, better lasting than others. secondly this paper inducts and introduces collins " organizational idiosyncracy ideas, points out the importance of value investment theories " development ; and then establishes investigating index system of organizational idiosyncracy, through the way that from the surface to the core achieved a comprehensive summary of its external demonstrations in a large degree. to approve the effectiveness and operativeness of the investment index system in its application, this paper has chosen the specific cases in various corporations of different industries both at home and abroad, and made a various analysis of them, so that affirmed the advance and feasibility of the organizational idiosyncracy investment methods

    本文首先指出主流價值投資思想主要局限於市場、業務（產品） 、技術和管理層等層次，而忽視了組織特質這一更本質、更深層、更持久的關鍵價值因素；其次引入並評價了柯林斯的組織特質思想，指出了它對投資思想發展的意義；然後形成了一套組織特質的評價指標體系，利用該體系由表及裡的，在最大程度上實現了對組織特質的全面概括；同時為了證實該指標體系的有效性，選取了國外公司、我國不同行業的不同公司進行了個案分析，通過對不同組織特質狀況企業的多角度分析確認了組織特質投資方法的先進性和可行性；最後對組織特質投資方法的適用性和局限性予以了總結。
  7. The bank vulnerability has been matter of concern in the works of economic historian and the institutional school. the classical economists such as marx, marshall, keynes mainly describe and analyze bank crisis from the angle of economic cycle, minsky and kindleberger introduces the behavior factor of microscopic main body into the analysis of bank vulnerability. the development of the game theory and the information economics lay a solid foundation for stiglitz and weiss ' s study about bank vulnerability

    銀行脆弱性問題在經濟史家和制度學派的著作中多有論及，馬克思、馬歇爾、凱恩斯等經典經濟學家主要從經濟周期的角度描述銀行危機的現象和原因，分別重視信用規模不穩定和社會流動性偏好的波動對銀行系統的影響，但馬克思將銀行信用危機看作是經濟危機的結果；明斯基、金德爾伯格引入微觀主體的行為因素對銀行的脆弱性進行分析；博弈論和信息經濟學的發展最終為斯蒂格利茨、韋斯等人對銀行體系脆弱性的研究提供了較為系統、堅實的微觀基礎。
  8. This paper researches the non - direct - grounded system fault detection from software arithmetic view, whose main content is as follows : the paper analyses the system running characters before and after fault. and the paper analyses the fault transient signal and fault steady signal and all parts in fault steady signal after the single line - to - earth fault occurs, and discovers the fault laws and appearance of fault signal. the analyzing of the fault laws and fault phenomenon of non - direct - grounded system all above is the base of analyzing arithmetic

    本文針對小電流接地系統選線的問題，從軟體演算法的角度進行了研究，主要內容如下：對小電流接地系統故障前和故障后系統的運行特點進行了分析，並且對小電流接地系統發生單相接地故障后，故障暫態信號、故障穩態信號以及故障穩態信號的各種成分進行了深入的分析，找到了故障的規律以及其故障信號的表現形式，為對各種演算法的分析比較打下了基礎。
  9. On the base of the introduction to the development condition in jiangsu province, the author concentrates on the analysis on non - state middle school teachers in jiangsu province in the following aspects : i. comprehensive analysis on non - state middle school teachers in jiangsu province, including the analysis on the general condition and the structure of non - state middle school teachers in jiangsu province, comparative analysis on non - state middle school teachers and state middle school teachers ; ii. case studies on the teachers " psychology and management strategies, including the analysis on common mentality of benefit, belonging, anxiety, employee and conjecture, the analysis on the corresponding measures taken by the school managers ; iii. ponder the exiting problems of non - state middle school teachers on the base of the comprehensive analysis and the case studies, resting with the negative effects to the construction of non - state middle school teachers caused by serious system obstacles, over flow of teachers, different motivation of the school runners and the management faults

    論文在簡要介紹江蘇省民辦中學發展狀況的基礎上，著力從下列幾個方面對江蘇省民辦中學教師隊伍進行分析：一是對江蘇省民辦中學教師隊伍現狀的綜合分析，包括對江蘇省民辦中學教師隊伍總體狀況的分析、結構狀況的分析、民辦中學和公辦中學教師隊伍狀況的比較分析；二是從教師個體心態與管理者策略的角度對江蘇省民辦中學教師隊伍狀況的案例分析，包括對民辦中學教師中普遍存在的利益心態、歸屬心態、憂患心態、打工心態、揣摩心態的分析，並分析了學校管理者採取的相應措施；三是在綜合分析和案例分析的基礎上對民辦中學教師隊伍存在問題的原因進行深入揭示，著重分析嚴重的體制障礙、過于頻繁的教師流動、學校舉辦者不同的動機、民辦中學管理上的缺陷對民辦中學教師隊伍建設造成的負面影響；最後從完善教師資格認定製度、強化教師資源配置的市場機制、健全教師社會保障體系和推進民辦中學教師的道德建設和專業化建設等方面提出加強民辦中學教師隊伍建設的政策建議。
  10. In recent years, asset - backed securitization has become a topic of the economic and financial domain in our nation, as a financial innovation, the application of asset - backed securitization in china will not only accelerate the effective circulation of financing, but also abate the risk of liquidity and the pressure of capital sufficiency on the commercial banks, furthermore, it will accelerate our financial system reform, improve the efficiency of financial market, and quicken the step of capital market internationalization and modernization, it is of great practical significance to import and use the asset - backed securitization for the economy and finance development in china, although, thee are some foreign models for asset - backed securitization, but the factors which influence the securitization in china are very different from those of foreign countries, we should n ' t copy word for word foreign models, therefore, it is worthy of probing and researching a model, which meets the situation in china nicely

    資產證券化作為一種金融創新，對于深化投融資體制改革，提高資產流動性、分散風險、提供新的投融資品種以及優化資源配置等具有重要作用。積極引入資產證券化並運用這一金融創新工具，將對我國經濟金融的發展有著重大的現實意義。資產證券化雖然有國外的模式可以借鑒，但是由於我國影響證券化的許多具體因素與國外很不相同，因此不可以照抄照搬國外的模式，應該從實踐的角度，根據我國的自身特點以及與證券有關的環境因素，來探索適合我國國情的資產證券化模式。
  11. According to the mis configuration and flows, dfmis - 1 software system has been programmed which is composed of inventory management subsystem, purchasing management subsystem and manufacturing schedule management subsystem. through studying deeply manufacturing schedule management, we find a way to make mrpii and jit be jointed together into manufacturing schedule and monitoring block. the study discusses especially how to make certain the producing period of all of component during dynamic manufacturing with methods of jit and " electronic bulletin ", how to get true capability of implementing plans in all working procedure section, and how to empower monitoring manufacturing in order to avoiding break between working procedure sections

    其中一項就是設計並實施了整個公司的網路綜合布線和計算機系統的配置；第二項是根據公司最急需的功能，從「信息流」 、 「物流」和「資金流」的角度，提出了相適應的mis結構和流程，據此開發出具有庫存、采購和生產計劃管理功能的dfmis - 1軟體系統，並對其中的生產計劃管理模塊進行了較深入的研究，實現了mrpii和jit在生產計劃、生產監督上的結合和應用，特別對利用jit及其「電子看板」在生產動態中確定零部件的生產周期、獲得各工序段實際執行計劃的能力，以及在加強生產監督、避免各工序之間的脫節上做了進一步的探討。
  12. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  13. It is found that the liquid kerosene of injection upstream cavity could finish the process of atomization and evaporation in short distance, and enter into cavity through convection. aft wall is the primarily area of flame holding in cavity, and the only area when near the lean blowout limit, flame in area of fore wall are spread from it. cavity shear layer in reaction flow angle greatly to the main flow direction, and couldn ’ t reattach to aft wall anymore, it appears great difference in characteristics of cavity flowfield between non - reaction and reaction state

    研究發現:凹腔上游噴注的液體燃料能夠迅速霧化、蒸發，並在較短距離內依靠對流輸運過程進入凹腔內部;凹腔後壁始終是凹腔火焰駐留的主要區域，在貧油極限時，也是唯一區域，並存在明顯的火焰由後壁向前壁的傳播過程;燃燒狀態下的凹腔剪切層以較大角度向下游主流發展，不再附著于凹腔後壁，與冷流中的凹腔流場特徵相差較大。
  14. Through the analyzes of electromagnetic system of a axial symmetry by the method of electromagnetic vector potential, an eddy current field math model is build by triangle cell, this article has researched the effect of power frequency to eddy current density, penetration depth and the skin effect

    本文以電磁場矢量位有限元法為基礎對二維軸對稱場的磁場強度、渦流密度進行了計算求解，採用三角形單元和六面體單元建立了渦流場數學模型，研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。
  15. Aiming at the working condition and object of the 9gscc - 1. 4 sunken - plantharvesting equipment, resistances of ship body and cutting fram were analyzedby means of theory of hydromechanics and traction force of the chain - type convegor were done also by means ofcalculation of tension. power equation of the equipment, which relates to the implement ' s forward speed vm, chain - type convegor ' s linear velocity vs and cutting frame ' s angle of dip, was attained. this paper established a mathematical model for power consumption as objective function, based on thefundamental, structural dimensionof the equipment

    本文根據9gscc - 1 . 4型水草收割機的工作原理及其主要結構尺寸，針對收割機的工作條件和工作對象的特性，應用流體力學理論分析計算船體及切割撿拾架的工作阻力，並用逐點張力法計算輸送鏈的牽引力，得出整機消耗功率與機組工作速度vm 、輸送鏈線速度vs及切割架入水角之間的關系式。
  16. Firstly, this paper proposes the mathematical model and finite - element analysis model of torque motor with mf and without mf. secondly, the electromagnetic field of torque motor is analyzed using the ansoft maxwell software ; static output torque of torque motor with mf and without mf is calculated. then the rotary angle of torque motor with different input electric current and mf is measured using three - coordinate measurement device

    本文首先給出了添加磁流體和不添加磁流體的力矩馬達磁路數學模型及有限元分析模型，其次，利用ansoft公司的maxwell電磁場分析軟體進行了力矩馬達的二維和三維磁場有限元分析，對添加磁流體和不添加磁流體的力矩馬達靜態輸出力矩進行了計算，並採用三坐標位移測量儀對不同輸入電流作用下、添加不同特性磁流體時力矩馬達的轉角進行了測量，從而對輸出力矩特性進行了實驗研究。
  17. It ' s a spr instrument based on angular interrogation, which can fulfill not only wide range but also highly sensitive angular scan. utilizing the principle of virtual instrument, an expandable, easy to use system control and data processing software is presented. micro fluid injection system, spr chips and temperature - controllable flow cell are developed as the accessories of the spr instrument

    它是一種基於高精度機械掃描結構的諧振角調制spr系統，採用先進的虛擬儀器技術以及嵌入式微控制器為主體的儀器；設計、編制了操作簡便、功能完備的信息處理軟體和操作控制軟體；設計和製造了配套的小型流動注入系統、溫控測試池及可批量制備的spr生物傳感晶元等，具有創新性。
  18. The huge international capital, especially the short - term capital, flows to our country, plays more and more important role in our economy, and has raised our great attention

    相當規模的國際資本流入我國境內，在我國的經濟金融運行中扮演著日益重要的角色，並成為我國「資金體外循環」的一個主要組成部分，其中最為值得關注的是國際短期資本的流入。
  19. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
  20. Firstly, this paper introduces the asynchronous motor model, and compares it with the dc motor ’ s. then the paper studies the principle of vector control, and proposes an improved current model of rotor flux observer. this paper also studies the three - level inverter ’ s topology, working principle, the neutral - potential unbalance mechanism and its controlling strategy. the paper especially studies the svpwm in details. the interface between the vector control and the three - level inverter is studied in details, including the generation of reference voltage vector, its judging of the sector and triangular regions, and the working mechanism after it sent into three - level inverter. when synthesizing the reference voltage vector, select the vector which only includes p and o states as the starting vector, thus eliminate the vector shift problem when sector changes. this paper fully takes advantages of the powerful functions of matlab / simulink to set up the simulation model. this construction is very explicit. the simulation results verify the inverter voltage output is correct, the rotor flux is steady, the asynchronous motor ’ s dynamic and steady state performances and speed modulation are excellent

    本文首先介紹了異步電機的數學模型，在此基礎上將異步電機的數學模型與直流電機的數學模型進行了比較;然後介紹了矢量控制的基本原理，採用了一種改進的轉子磁鏈電流型觀測模型;對三電平逆變器的電路拓撲、工作原理、中點電位不平衡的機理及控制方法進行了介紹，詳細分析了空間矢量脈寬調制策略。本文對異步電機的矢量控制與三電平逆變器之間的介面進行了詳細的研究，包括:參考電壓矢量的形成、所落扇區與具體小三角形區域的判斷、送入逆變器之後的工作機理。在參考電壓矢量的合成時，選擇只包含p 、 o狀態的空間電壓矢量作為起始矢量，解決了扇區切換時的矢量突變問題。
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