流通截面 的英文怎麼說

中文拼音 [liútōngjiémiàn]
流通截面 英文
actual internal area
  • : 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...
  • : 通量詞(用於動作)
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • 流通 : circulate
  1. The author takes consider of the aerial condensability. according to newton ’ s second law and gas equation, it is elicited to the gas pressure distributives in the drill pipe

    過壓力分布圖可知,突變導致壓力發生突變,空氣速在該處最低,因此,最小風量採用突變處風速計算。
  2. So we consider five financial indexes includes stock b / p, e / p, current stock size, current stock stru and financial levge by the international tradition, then descriptive statistical test method and cross section statistical test method proved that b / p and current stock size have marked effect on the securities yield besides coefficient b. in the third chapter, the article fut forward a risk factor model, estimates yield sequences of every risk factor by weight regression, and then estimates each risk factor coefficient of different stock by time sequence regression, at last we can reckon the portfolio risk o2p and yield rp which consists n stocks

    結合國際慣例,文章考慮了股票的凈值市價比( b p ) ,市盈率倒數( e p ) ,規模( size ) ,比例( stru )和財務杠桿( levge )等五個財務指標,應用描述性統計檢驗和橫統計檢驗等多種方法,結果表明,除系數以外,凈值市價比( b p )和規模( size )對證券收益率部有重要的影響。在論文的第三章,提出了一個基於多因素的風險因子模型,並用加權回歸和時間序列回歸等方法估計出了不同證券的各風險因子系數(類似於單指數模型中的系數) ,據此,即可衡量出一個包括n只股票的組合的風險_ p ~ 2和收益率r _ p 。
  3. Induction heated oil tempered spring wire is a kind of new technical material which has been developed since 1980s. it can be heated by means of eddy induced into itself through electromagnetic coil and this method is mainly used in surface quenching. with correct designing and reasonable current frequency, induction coil and heat treatment process selected, as well as plc controlling applied, the wire can be uniform heated along cross - sectional and longitudinal direction and can be quenched and tempered continuously

    應加熱油淬火-回火彈簧鋼絲,是二十世紀八十年代發展起來的新技術材料,在國外稱為itw induction heat oil tempered spring wire 。是過線圈電磁感應鋼絲本身產生的渦進行加熱,常主要用於表淬火。經正確設計,選擇電頻率,合理的感應線圈及熱處理工藝,並實施plc控制,可使鋼絲整個及長度上得到均勻加熱,進行連續整體淬火和回火。
  4. It is concluded that the combustion chamber passage area, passage direction, passage shape and passage position have a strong effect on in - cylinder current motion and flow speed

    計算結果表明,燃燒室積、道傾角、道形狀、道布置對氣運動的形式及氣速度均有較大的影響。
  5. In the end, the impedance matrix of any three - dimensional conducting object can be portioned into sub - matrices by the projection iterative method ( pim ), the surface current and rcs can be calculated with convergent iterations, the wide - band electromagnetic scattering characteristics of three - dimensional conducting objects are also analyzed with the asymptotic waveform evaluation technique

    最後應用投影迭代方法( pim )將三維導體目標的阻抗矩陣剖分成小矩陣,過迭代計算出表和雷達散射,並與漸近波形估計技術結合分析了三維導體目標的寬帶電磁散射特性。
  6. Because traffic flow greatly increases in recent years and the rank of actual driving load enhances, causing this bridge to be at the excess load the service condition, so in order to guarantee the bridge ' s transport security, the main body structure of the bridge should be reinforced

    摘要長沙市八一路跨線橋由於近年來交量大增,實際行車荷載等級提高,使得該橋處于超負荷的營運狀態,為了保證大橋營運安全,需要對此橋的主體結構進行加固,在選擇加固方案時對比了三種加固方法:鋼混凝土組合結構加固方法、混凝土結構擴大加固方法、粘鋼加固方法。
  7. The experimental and numerical studies on the two enhanced tubes are performed. the strong multi - longitudinal vortex flow in the aea - tube is induced by alternating change of the elliptical cross - section, and for the ddir - tube, the strong multi - longitudinal vortex flow is

    交叉縮放橢圓管是過橢圓的交叉變化誘導產生強烈的二次和多縱向渦,而不連續雙斜向內肋管則是過不連續的雙斜向內肋對的作用形成強烈的多縱向渦。
  8. Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed

    本文在總結和分析了一個世紀以來有關曲線管道動和換熱特性的研究成果的基礎上,以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對傳熱為物理模型,過攝動方法和有限體積法,首次對各種(圓、橢圓、環形、矩形)旋轉曲線管道內充分發展動的動結構和傳熱特性(包括耦合對傳熱特性)以及旋轉曲線管道開口段發展動的動結構和換熱特性進行了系統的數值模擬和理論分析,詳細討論了各種無量綱參數對管道內軸向速度分佈、二次結構、溫度分佈、壁摩擦力、摩擦系數比以及管道nusselt數的影響,獲得了若干創新性成果。
  9. The paper includes four sections followed here : the first section studies the modeling of signals of pulse doppler radar seeker, and establishes a radar signal simulation model, including radar emitting signal model, receiving signal model, receiving echo signal model, clutter model, noise model, sum channel directional pattern of antenna model, difference channel directional pattern of antenna model, sheltering model, rcs model, glint noise model, etc. the second section studies signal processing of pulse doppler radar seeker, and establishes radar signal processing mathematical model and data processing mathematical model for simulation, including windowing, doppler filtering, envelope demodulation, pdi, cfar, centering, velocity tracking, angle tracking, a - b filtering, etc. the third section studies the modeling of modified proportion guiding, and establishes guiding model, then dynamic simulation results is provided

    論文的主要工作包括四部分:第一部分研究了脈沖多普勒雷達導引頭的信號建模問題,建立了雷達信號模型,主要包括:發射信號模型、接收信號模型、目標回波信號模型、雜波模型、噪聲模型、和差道天線方向圖模型、遮擋因子模型、接收機噪聲模型、目標雷達積統計性模型、目標角閃爍模型等。第二部分研究了脈沖多普勒雷達導引頭的信號處理模式,建立了信號和數據處理模型,主要包括:加窗和多普勒濾波、包絡檢波、檢波后積累、頻域cfar處理、速度定心、速度跟蹤、角跟蹤、 ?濾波等,然後給出了信號處理程。
  10. The new research progress in the effect of forest on rainfall, interception annual runoff, was summarized. the main issues show that the most function of forest vegetation aims at protecting water resources and water environment, adjusting water amount, controlling erosion, decreasing run - off silt, decreasing maximum flow as well as increasing discharge of river in dry season and purifying water quality

    本文一方過介紹森林水文學的概念、研究進展和實際運用,分析了森林與水相互作用的特點,並從降水、留、徑等方綜合研究森林植被在涵養水源、調節水量、減少徑泥沙、降低洪峰、增加枯水期量、改善水質等方具有的重要功能。
  11. In this way, when obturation cubage leave absorb oil cavity it connects the eduction oil cavity with the v trough and with the increasing of the turning angle, the size of the cross section of v trough become bigger and bigger, which make the pressure between the cavity of two blades much higher and higher, and until it completely connects the eduction oil cavity, it reaches the pressure of the eduction, and it can effectively reduces the fluid noise caused by high pressure return flow

    這樣,當密閉容積離開吸油窗口之後,過v型尖槽逐漸與排油窗口連,隨著轉角的增加, v型尖槽積逐漸增大,這就使兩葉片間容腔內的壓力逐漸升高,直至完全接排油窗口時,才升壓達到壓油腔的壓力,這樣可以有效地降低因高壓迴而引起的體噪聲。
  12. For aspecial example, the steady current was analyzed for circular section of straight conductor, then the distribution of the current, charge and field quantity were discussed

    過分析載直導線中穩恆電這一特例,討論了電、電荷與場量的分佈問題。
  13. On the basis of piv measurement of the gas solid velocity field, the size and the numbers of particles are measured by newly developed image processing software. the results are identical with the variation of the factual size of particles. by the viable datum, the average size of particles in the cross section is calculated in the dilute phase area of circulating fluidized beds ( cfb ) riser

    在piv測速系統基礎上,過二次開發的圖像識別軟體,實現不同工況下各顆粒粒徑分佈的測量,測量結果基本反映出實際顆粒粒徑變化,證明了該方法的可行性,進一步獲得了循環化床稀相區顆粒粒徑分佈特性。
  14. The variable intercept fixed effect panel data model set up in this paper based on the financial data between 1997 and 2004 of 34 listed companies in electric power industry has proved that the theoretical analysis of this paper is well founded in that the maturity structure of debt financing has remarkable positive relation with enterprise value ; and that the size of enterprises, the ratio of negotiable share and the shareholding ratio of the first shareholder have significant influence on enterprise value

    本文利用34家電力行業上市公司1997 ~ 2004年的財務數據,過建立變距固定效應板模型,證明企業價值與債權融資期限結構具有顯著的正相關關系,這一結果支持了本文的理論分析;實證結果還表明企業規模、股比例、第一大股東持股比例對企業價值具有顯著的影響。
  15. Full - bore : full - bore straight - through type with connection between valve and pipeline or straight pipe, equal sectional area and " 0 " loss of flow

    徑:全徑直式,閥門與管道或直管連接相積相等,量損失為「 0 」 。
  16. However there are no numerical computations about continuous - flow pcr chip. so the microfliudic velosity and temperature distribution in direct microchannel, curve microchannel and widing microchannel with 100 m width and 50 m depth are computated using fluent software

    Pcr微控晶元的制備則是採用本文提出的新方法,在pmma材料上制備出橫為矩形、底光滑、逶迤型的微道。
  17. At the same time, when the gas flow passes the flow area of the inlet valve at a high speed, turbulent throw - outs will appear and lead to the generation of high frequency noises. as the flow area of the inlet valve keeps changing, the turbulent noise is of fixed frequency range ( generally over 1 000 hz )

    與此同時,當氣以高速經進氣門流通截面時,產生湍脫體,導致高頻噪聲的產生,由於進氣門是不斷變化的,因此湍噪聲具有一定的頻率范圍,主要集中在1000hz以上的高頻范圍。
  18. The exhaust system and muffler are simplified as a set of 1 - d pipes with non - isentropic flow and with variable sections. the partial differential equations of non - stationary flow are transferred into the stationary differential equations by means of the characteristic lines. these equations are solved by finite difference method

    在排氣管系的計算中將排氣管簡化為一組一維非等熵變管,並過「特徵線法」將描述其運動的非定常的偏微分方程轉化為常微分方程,再用差分數值方法依靠計算機求解。
  19. In this thesis, by changing the position of laser, increasing the operation velocity and adding the experimental materiel, the images data under the different operational condition are gotten. visual analysis of the different area of flow field is done, using a serial of images about the typical sate of flow field

    試驗過程中,過改變激光器照射,提高操作風速,變化物料高度,獲得不同工況下的圖像數據,並針對不同的動區域,將獲得的典型動狀態的連續圖像進行了可視化分析。
  20. Analyze how to ensure the smallest limit of core length, and give the formulation of laminated dimension when the given diameter limit is zero. this paper gives the gene handling genetic algorithm and the gene express genetic algorithm, separately, to accomplish the optimization transformer core section. the optimization results show the effect

    過分析鐵心最小級片寬下限的選擇依據,並給出控制鐵心給定直徑外限為0時每級疊厚的遞推公式,本文從外部信息角度和內部信息角度出發,分別採用基因控制遺傳演算法和基因表達遺傳演算法完成了鐵心的優化設計,並取得了很好的效果。
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