流速面積法 的英文怎麼說

中文拼音 [liúsùmiànjīfǎ]
流速面積法 英文
velocity area method
  • 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...
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 面 : 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...
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 流速 : [機械工程] velocity of flow; strength; [水文] current velocity; current speed; flow rate流速管 pi...
  • 面積 : [數學] area
  1. The method of obtaining high concentration of na2feo4 solution by quick electrolysis mainly contains four aspects : adoption of either a diaphragm or an ionic membrane electrolytic cell in which a thin anodic cell lying between the two cathodes, ( 2 ) using an iron anode that has larger specific surface area, ( 3 ) keeping suitable concentration of naoh in the anodic cell, adoption of lower current density and higher electrolyzing speed. the practical technique parameters follow a s below : the naoh solution of 14 - 16mol / l, the temperature of 303 - 308k, the surface anodic current density of 300a / m2, the unit electrolyzing speed of efficiency larger than 6. 0a / l

    快速電解獲取高濃度na _ 2feo _ 4溶液的方法，主要包括四個方面：採用兩陰極室夾一厚度較小的陽極室的隔膜（或離子膜）電解槽；使用比表面積較大的鐵網陽極；保持陽極室中有適宜濃度的濃naoh溶液；採用較低的電流密度和較高的電解速度。具體工藝參數是： 14 16mol / lnaoh溶液、溫度303 308k 、表觀陽極電流密度300a m ~ 2 、有效單位電解速度6 . 0a / l 。
  2. Based on sale method ( simplified ale, in which the mesh may move with arbitrarily prescribed velocity with respected to the fluid, and lagrange interfaces are maintained between cells containing different material. ), the line loop integral difference scheme is derived which can be used to calculate two - dimensional elastic - plastic flow

    並在sale （ simplifiedale ，一種簡化的ale方法，網格可以任意運動，但物質界面處的網格仍然以物質速度運動，物質界面始終為lagrange網格線以保證網格中只有單物質出現）方法框架下，推導並給出了適用於彈塑性流計算的ale線積分差分格式。
  3. Measurement precision contribute to improving the security class and economic of boiler running and automatic level of whole plant. the smart measurement instrument of the boiler ’ s air flow designed in the thesis and the instrument can make the degree of accuracy get to. firstly, the thesis build the “ velocity - area ” method which is on basis of “ log - tchebycheff ” on the analyzing of basic measure method of boiler ’ s air flow. secondly, model86 averaging pitot tube was selected the right model of flow transducer which can pickoff the differential pressure and static pressure. modelc264 which made in setra system corp. u. s. a was selected as ultra low differential pressure transmitter. a good flow of boiler ’ s air was calculated by offsetting pressure and temperature. finally, numeroscope was designed with z80cpu and other chips

    精確的監測有助於提高鍋爐燃燒的安全型、經濟性，也有助於提高電廠的整體自動化水平。本文設計的智能化鍋爐風量測量裝置能夠實現對鍋爐送風的精確測量，精度可達。本文首先研究鍋爐送風矩形大管道測量理論，提出在流來流量測量測點布置基於「對數-切比雪夫」法的速度-面積法。
  4. Measurement of fluid flow in closed conduites. velocity area method using pitot static tubes

    密封管道中液體流量的測量.用皮托靜壓管的速度面積法
  5. Measurement of fluid flow in closed conduits. velocity - area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current - meters or pitot static tubes

    密封管中流體流量的測定.用電流表或靜壓皮託管測量圓管道內迴旋流或不對稱流動流量的速度-面積法
  6. When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge

    以75000km ~ 2的川中丘陵地區為試點研究區，繪制了該地區新模型的參數等值線圖，率定了不同設計頻率的改正系數，使設計者只需在地形圖上獲取集水面積，河道平均坡降和流域形狀系數，在參數等值線圖上查得橋涵所在地的相應參數，使用計算器即可迅速計算出設計流量，大大縮短了設計周期，且精度較高，設計的洪水流量一般低於傳統方法，從而可減小橋涵跨徑，節省投資。
  7. 4. a novel amperometric sensor has been constructed for the determination of h2o2. it was based on catalyzing electroreduction of hydrogen peroxide by metal hexacyanoferrate, which were electrodeposited on gold wire electrodes, under a certain potential

    利用循環伏安法，在金電極表面電化學沉積一層鐵氰酸鎳膜（ nihcf ） ，在一定電位條件下，它能快速催化還原過氧化氫，其響應電流與過氧化氫的濃度呈線性關系。
  8. The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables

    （ 3 ）進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究，以及有升力約束情形下機翼跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件數學表達形式，研究與發展了三維共軛方程的有限體積數值求解方法，及相應梯度公式的數值求解方法，通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合，成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序，成功地進行了多個設計算例研究。
  9. 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流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流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流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、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。
  10. The main measures are : damming improving flow condition riverbed excavation etc. riverbed excavation is always used in reducing velocity of a channel with bad flow condition. in singularity channel, velocity can be reduced with the increase of crossing area by excavating riverbeds

    整治採取的主要措施有：築壩壅水、改善流態、開挖河槽等等，對于流態惡劣的急流灘，常採用開挖河槽擴大過水斷面面積的方法來降低航道流速。
  11. With the using of microsoft visual basic 6. 0, a multimedia computer - aided design system of small type pumping irrigation district is developed in this paper. provided with the live multimedia messages as well as a good man - machine conversation mechanism, this system can help the user to finish the planning of an pumping irrigated area such as the layout of canal system, the selection of pump models, the establishment of the irrigation program, the calculating of canals " parameters, the estimate of the project magnitude, the selection of the field constructions, the economic analysis of the project, the output of results, etc, a new oo ( object oriented ) programming method is adopted in this system, various softwares are integrated in this systems as well by the " automation " technic provided by vb, in addition, the multimedia technic is applied to this system for the first time, it makes the system easy to ope rate. as for the optimization of the canals " section, a new optimization method is adopted based on the existing theories about the canals " section, and in this way, with the purpose of minimizing the project ' s investment as well as a stalized canal, limited by the longituding slope, the canals " best feasible parameters can be deduced. furthermore, a integral method to reckon the earth work is developed in this paper, by this way, the estimate precision of the earthwork is enhanced notably. this paper includes the particular illumination for the developing procedure of each systems " segment, and in the end, the directions of the system are demonstrated in a sample area which lies in the zhaija village, taizhou city, jiangsu province, the running results showed that the initial purposes are achieved effectively, and it has a preferable practicability

    在渠道縱橫斷面優化方面，本文在利用已經比較成熟的縱橫斷面優化理論的基礎上，提出以工程總費用最小為目標函數，以渠道縱坡i為控制變量，以渠道不沖不淤流速及灌區允許地面比降為約束條件，通過縱橫斷面聯動優化的方法得到渠道的最佳工程可行的斷面參數。另外，針對部分地區的取土困難的狀況，本文採用積分法計算渠道工程土方量，從而大大提高了土方量的估算精度，有助於準確控制工程投資規模及資金投向。本文詳細闡述了該系統所採用的編程方法、系統構成、系統各組成模塊的開發過程以及灌區規劃所採用的優化方法及原理，最後應用本系統對泰州市翟家村機電灌區進行規劃設計，運行結果證明其操作比較簡便，界面友好，運行速度快，規劃成果合理，基本達到了系統預定的要求，具備較強的實用性。
  12. Standard test method for open - channel flow measurement of water by velocity - area method

    用速度面積法測量明渠水流量的標準試驗方法
  13. The dissertation also does a research on the control strategies of mechanical control parts. the theoretical expression among needle valve throttle area, cam - control valve throttle area and the equivalent throttle area of combining control is given, and the principle of combining control of the two valves is analyzed. the arresting control strategies under various engaging conditions are presented, namely the engaging condition of same overrunning length and same engaging speed but different weight, the engaging condition of same overrunning length and same weight but different speed as well as the engaging condition of same weight and same engaging speed but different overrunning length

    研究了機械控制機構的控制策略：從理論上推導出了針閥節流面積、凸輪控制閥節流面積及聯合控制的當量節流面積三者之間的關系表達式；分析了針閥與凸輪閥聯合控制的控制原理和方法；給出了同攔停距離同撞網速度不同重量飛機撞網狀況、同攔停距離相同重量不同撞網速度飛機撞網狀況以及同重量飛機同撞網速度不同攔停距離撞網狀況的攔阻控制策略。
  14. On the other hand, we accomplished the asic design flow successfully based on the fpga design. we have made the most use of various optimization methodology and simulation tools include dynamic simulation, static timing analyzing and post simulation. at last this design net list was past to layout design team in order to check its electronic characters

    在我們的asic流程中，首要的因素是在fpga驗證其正確性的基礎上對速度與面積進行科學有效的平衡，在成本和性能中間取得良好的結合點，運用先進的eda設計工具和演算法對設計進行綜合優化（ synthesis ） ，動態時序分析（ dynamicsimulation ） ，靜態時序模擬（ sta ）到自動布局布線（ apr ）之後將寄生參數反標回前面的步驟進行更精確的判斷和分析，最後交給版圖設計人員進行版圖設計和優化。
  15. For this reason, the general algorithm on fault calculation is researched in protection relay setting, and fast calculation on branch current is put forward for the first time in this paper. so the complete and quick fault analysis is provided for protection setting

    為了滿足工程實際需求，本文作者積極探索了面向繼電保護整定計算的通用故障分析演算法，首次提出了適用於任意故障類型的支路電流的快速演算法，為保護定值的整定計算提供了完備而快速的故障分析方法。
  16. Measurement of liquid flow in open channels - velocity - area methods

    明渠液體流量測量.速度面積法
  17. Verification regulation of flowrate facilities by velocity - area method

    速度-面積法流量裝置檢定規程
  18. Liquid flow measurement in open channels. velocity area methods. collecting and processing of data for determination of errors measurement

    明渠液體流量的測量.速度-面積法.誤差測量數據的收集和處理
  19. In order to otain high quality zno thin films, we, for the first time, employ the plasma enhanced chemical vapor deposition ( pecvd ) to prepare high quality zno thin film at low temperature using a zinc organic source ( zn ( c2h5 ) 2 ) and carbon dioxide ( co2 ) gas mixtures. the effects of the growing condiction and the native oxide layer of si substrate on the quality of zno thin films was studied in detail. to prepare p - zno and overcome the dufficulty of reverse due to the interaction between the n atomic, we obtain high qulaity p - zno by a easy way of thermal zn3n2

    為了在低溫下制備高質量的氧化鋅薄膜，我們採用金屬有機源和二氧化碳氣源，首次利用等離子體增強化學氣相沉積的技術在低溫下制備了高質量的氧化鋅薄膜，系統地研究了生長條件以及襯底表面氧化層對薄膜質量的影響，確定了生長高質量氧化鋅薄膜的優化條件；為獲得p - zno材料，克服在zno中摻n雜質間相互作用影響摻雜效率不易獲得p - zno的困難，我們通過熱氧化zn3n2的方法制備了p - zno ，獲得了一系列研究結果： 1 、詳細研究了氣體流速比，襯底溫度和射頻功率實驗參數對氧化鋅薄膜特性的影響。
  20. The number of the channels was chosen, both the relationship between the channel wide and the minimum screen area covered by the pool and the relationship between the location of the pool and the covered screen area were presented by analyzing the screen area covered by the liquid pool under the worst operating condition

    對通道式表面張力貯箱提出了系統的設計方法，包括篩網面積分析，得出不同加速度水平下的設計方案；通過通道壓力網路計算，得出最差工況下，各管道流量、壓降、篩網壓降，提出了以最小剩餘質量為目標的優化設計方法。
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