電流表流速計 的英文怎麼說

中文拼音 [diànliúbiǎoliúsùjì]
電流表流速計 英文
current meter
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 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...
  • 表 : Ⅰ名詞1 （外面;外表） outside; surface; external 2 （中表親戚） the relationship between the child...
  • 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...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  • 流速 : [機械工程] velocity of flow; strength; [水文] current velocity; current speed; flow rate流速管 pi...
  1. Second, the imaging model built here has taken into account the tilt modulation, the hydrodynamic modulation, and current modulations of radar cross section. consequently, it has realized the imaging simulation of four kinds of wakes with the same imaging model. third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave m ovement according to the orbital velocity

    該模型的主要特點是： （ 1 ）它採用了三尺度復合表面模型的思想來計算海面的電磁散射，考慮了中等尺度波對紋波的進一步調製作用，彌補了傳統雙尺度模型的不足； （ 1 ）它考慮了海浪的傾斜調製作用、流體動力調製作用和流場對雷達截面的調製作用，實現了用統一的模擬模型對四種艦船尾跡特徵進行成像模擬； （ 3 ）它把海面長波的軌道速度作為基本的動態成分，並依此來考慮海面運動對sar回波信號的影響。
  2. The nano - sno2 electrode was used as bioelectrochemical sensor in chronoamperometry to count fastly e. coli with the advantages of quickness, simple operation and high sensitivity

    實驗結果表明，用該電極為工作電極，採用計時電流法能簡便、快速、靈敏地對水體中的大腸桿菌進行計數。
  3. The design and analysis of vertical pnp transistor was accomplished through the relationship between carriers lifetime of epitaxy layer and current gain, rate of surface combination and leakage current, carriers lifetime of epitaxy layer and switch speed

    從外延層載流子壽命與晶體管放大倍數，表面復合率與漏電流，以及外延層載流子壽命與晶體管開關速度等方面對于輸出級縱向pnp管進行了較為詳細的設計與分析，達到了電路中對輸出級縱向pnp管主要參數指標的要求。
  4. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  5. Voltage meter, current meter, frepuency meter, oil pressure meter, water temperature meter, timer, battery voltage or charging current meter, protection indicator, speed and voltage inching switch and etc

    電壓表電流表頻率表油壓表水溫表計時器電池電壓或充電電流表保護指示燈轉速及電壓微調開關等。
  6. We have got the instrument ( pressure gauge, thermometer, tachometer, current meter, universal meter ) ready for the experiment ( test )

    我們已經準備好做實驗（試驗）的儀器（壓力表、溫度計、轉速計、電流表、萬用表） 。
  7. ( 2 ) in this paper, the author summarized the working principle, the superiority and the limitations of a few main kinds of classical sprinkler systems ; put emphasis on the importance of a few key points which is relevant to the function of the system, such as the choosing of sprinkler and it ' s fixing, the automatic checking function of water pump, the layout of alarm valve, especially the choosing of sprinkler and it ' s fixing ; looked through the feasibility of which we used water instead of gas by water mist especially finely divided water mist fire - extinguishing technique

    展望了水噴霧技術特別是細水霧技術進行以水代氣滅火的可行性。 （ 3 ）針對工程設計中最復雜，工作量最大的部分-系統水力計算部分，在規范的基礎上，基於excel電子表格，提出了經濟流速的范圍，提供了一套行之有效的設計計算方法，同時，對屋頂水箱和增壓泵的設置這一難以解決的問題發表了見解，既確保了自動噴水滅火系統初期快速滅火、控火的性能，又節省了大量的設計工作時間。
  8. 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。
  9. Person who " rise grand " its product have a electron type that accumulate the counter mainly, i put the counter, rice counting device, time - recorder, time relay, electric current relay, transfer speed controller, test the speed express, linear velocity line, alarm, examine long sensor, control cabinet serial product, and accept the design, development of the relevant products and make

    其「騰隆」牌產品主要有電子式累加計數器、予置計數器、計米器、計時器、時間繼電器、電流繼電器、調速控制器、測速表、線速度線、報警器、測長傳感器、控制箱系列產品，並承接相關產品的設計、開發與製造。
  10. 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。
  11. Finally, a large number of experiments are done in this paper, such as the experiments of constant voltage and constant frequency, the current waveform of rotor, different carried - wave ratio, the transition smoothly and connecting electricity web etc. the theoretics and experiments results show that the design of control system is rational, terse and steady ; the analysis of control strategy and system experiments are successful basically

    最後，本文對系統進行了大量的試驗研究。其中主要包括：恆頻恆壓，轉子電流波形，不同載波比，同步速過渡及其並網試驗等。理論及其試驗結果表明：本控制系統的設計是合理、簡潔、穩定的；控制策略的分析和試驗基本上是成功的。
  12. As analyzing the electromagnetic scattering characteristics of two - dimensional electrically large conducting objects, the object is divided into some small regions by using spatial decomposition technique ( sdt ), but still consider the coupling effect among all the regions, the surface current and rcs of the object can be computed with progressive iterative numerical method ( pnm ). then the wide - band electromagnetic scattering characteristics of two - dimensional electrically large conducting objects are analyzed with the asymptotic waveform evaluation ( awe ) technique

    文中應用空間分解技術（ sdt ）將二維電大導體目標在空間中分解為若干子區域，考慮子區域間的耦合，採用累進迭代方法（ pnm ）快速計算表面電流和雷達散射截面，然後與漸近波形估計技術（ awe ）結合分析了二維電大導體目標的寬帶電磁散射特性。
  13. An idea for analyzing the electromagnetic scattering characteristics of electrically large objects is transforming the solution of large problems into that of some little problems. the object can be divided into a number of small regions or the equation be partitioned into some sub - equations, then the surface current and rcs can be computed fast by iterations

    分析電大導體目標的電磁散射特性，一種基本思想是將大問題化為小問題求解，對目標進行空間分區或分解矩陣方程等，然後通過迭代快速計算出目標的表面電流和雷達散射截面。
  14. Depending on the image method and point source approximation method, the physic model was established, and the formula of photo - current versus surface recombination velocity was obtained

    導出了光電流與表面復合速率相應關系的計算公式，確定了可進行電量測量的實驗裝置。
  15. The pc id has been used in order to analyse the influence of surface recombination on the performance of crystalline silicon solar cell. in different surface concentration, the relation of the surface recombination velocity and the performance ( voc, jsc, g ) of crystalline silicon solar cell is discussed

    採用pc1d就表面復合對太陽電池性能的影響進行理論計算，探討了晶體硅太陽電池不同表面濃度條件下，表面復合速度與太陽電池開路電壓、短路電流以及轉換效率之間的關系。
  16. In order to validate the theoretical investigation, experimental motor sampled signal ( the voltage and the current ) is conversion to digital quantity and given to observer for estimating speed. the comparative results of estimated speed and actual speed show that both are in good agreement

    為了驗證理論研究的正確性，本文將實驗中的電機采樣信號（電壓和電流）轉換為數字量后加在觀測器上估計轉速，並把結果和實際電機轉速作了對比，結果表明穩態下兩者很好地一致。
  17. Electromagnetic flowmeter, as a main measure instrument, holds great increasing in interior market

    電磁流量計作為一種主要的測量儀表，在國內市場增長迅速。
  18. And the controlling method of pi makes the temperature control quick and stable. at the same time, the paper completes the mutual communication between temperature control equipment and computer by way of serial interface and usb interface, so as to realize the remote control of computer to the temperature control equipment. finally, the performance test of the semi - conductor temperature control equipment researched in this paper is carried out, and the results show that the precision of the temperature of the controller of semi - conductor can reach to 0. 2, and the degree of temperature stablization is less than 0. 05

    整個系統採用閉環控制結構，使系統的抗干擾能力大大增強;為半導體製冷器量身定做的驅動電路，可以方便的調節通過tec電流的大小和方向，使tec加熱製冷靈活迅速的特點得到充分發揮;使用比例積分（ pi ）的控制方法使得溫度控制快速穩定;同時，本文還實現了溫控儀與上位機通過串列口和usb口兩種方式的通訊，實現了上位機對溫控儀的遠程控制;最後，對所研製的半導體溫度控制儀進行了性能測試，測試結果表明，半導體溫度控制儀溫控精度達到0 . 2 ，溫度穩定度小於0 . 05 ，滿足了系統設計的要求。
  19. Due to the charge sharing and charge leakage phenomena in the traditional charge - pump, a new charge - pump with current control technique is designed in this thesis. in the circuit design, a simple positive feedback is employed to expedite the switching speed. the simulation results show that the charge sharing and charge leakage phenomena can be effectively prohibited in the proposed charge - pump

    2 .針對傳統電荷泵中存在電荷泄漏和電荷共享現象，設計出了一種採用電流控制技術的新型電荷泵，電路中巧妙地運用了一個簡單的正反饋，以加快開關速度，模擬結果表明，所設計的電荷泵能有效的抑制了電荷泄漏和電荷共享現象。
  20. What the subject researching is that power energy should be measured with base wave ammeter to power systematic nonlinear user ; and that it is high veracious by base wave ac parameters measurement method to those not bad contaminative. it is well known that all kinds of ac parameters including of base wave and harmonics, but the content of harmonics in power systems increase largely with the mass disturbance to power using high - power electric equipment. which makes wave shape of voltage and current aberrence, so the measurement veracity and reliability decreased largely. at the same time brings out serious infuency to safe run of power system and electric equipment. the power which any non - linear loads consumes can be divided into two sides, one is base power absorbed in power and the other is minus harmonics power

    本課題所研究的問題是針對電力系統非線性負載用戶採用基波電度表來計量電能；而對諧波污染不嚴重的線性用戶採用基波交流參數測量的方法仍然具有較高的準確性。眾所周知，各種交流參量都包含基波和各次諧波，然而隨著電力電子技術的迅速發展，大功率的用電設備對電網的干擾也是越來越嚴重，導致電力系統諧波含量迅速增長，使電壓和電流的波形產生嚴重畸變，測量的準確性和可靠性都大大降低，同時也對電力系統和用電設備的安全運行帶來嚴重的影響。任何一種非線性負載所消耗的功率都可以分為兩部分，一部分為從電網中吸取的基波功率，另一部分則是負的諧波功率。
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