長常數 的英文怎麼說

中文拼音 [zhǎngchángshǔ]
長常數 英文
long constant
  • 長 : 長Ⅰ形容詞1 （年紀較大） older; elder; senior 2 （排行最大） eldest; oldest Ⅱ名詞（領導人） chief;...
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis

    論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量，導出了超高壓長線的波阻抗和傳播常數的數學解析式，在此基礎上進行了500kv輸電線路實時參數計算；提出以三繞組自耦變壓器的電流、電壓、功率為輸入量，導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算；在此基礎上編制了相應的軟體。
  2. However, it is not easy to incorporate large n concentration in gap due to the large differences in lattice structure ( gan belongs to wurtzite structure while gap zinc blende structure ) and in lattice constant ( ~ 20 % ) between gan and gap, which will lead to an extremely large miscibility gap

    然而要在gap中實現高濃度的摻氮並不容易。這主要是由於gap和gan之間較大的物理特性的差異，特別是晶格結構和晶格常數的差異，使得gap和gan存在較大的可混溶性間隙，從而難以生長高質量的高摻氮的gap材料。
  3. Testing the dielectric constant of liquid by taking a long sample

    長試樣法測液體介電常數
  4. Affect on magnons energy spectrum of ferrimagnetism two - dimensional rectangle lattice by lattice coefficient

    晶格常數對亞鐵磁性二維長方晶格磁振子能譜的影響
  5. Fourth, the electrorheoldgical fluids composed of pan / batio3 nanocomposite and chlorated paraffin oil are prepared and the relationship between dielectric performance and electrorheological effect are discussed. fifth, the advantage and disadvantage of electrorheological fluids composed of different structure pan - batio3 nanocomposite are compared, which put a favorable basis for farther design and prepare electrorheological fluid with high performance

    研究結果表明：鈦酸鋇納米粉末在900處理時為最佳，隨熱處理溫度的升高，粒徑長大，而其介電常數隨著粒徑長大，逐漸降低，在相同條件下，隨溫度的升高，鈦酸鋇納米粉末的介電常數在120出現最大值。
  6. The amount of free ions and labile complexes of copper has been determined and the apparent stable constants have been calculated in a proteose peptone medium by anodic stripping staircase voltammetry ( assv )

    採用陽極階梯溶出伏安法，測定了蛋白腖細胞生長液中的易變形態銅，並獲得了總銅量中易變形態的摩爾分數以及易變形態的表觀穩定常數。
  7. Relaxor ferroelectric single crystals, such as pb ( mg1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pmnt ) or pb ( zn1 / 3nb2 / 3 ) - pbtio3 ( abbreviated as pznt ), have been reported to exhibit an extremely large piezoelectric constant and excellent electrostrictive properties. such excellent performance makes it fully substitute the traditional piezoelectric ceramics and points to a revolution in ultrasonic transducers, actuators and micro - positioners, making relaxor - based piezocrystals the most promising materials for a broad range of advanced applications. however, it is difficult to grow the high quality single crystals because of the lack of valid thermodynamic data

    新型弛豫鐵電單晶鈮鎂酸鉛（簡稱pmnt ）或鈮鋅酸鉛（簡稱pznt ）是一類新興的功能材料，其在準同型相界附近具有優于傳統壓電陶瓷的較高的壓電常數和電致伸縮系數，可完全代替傳統的壓電陶瓷作為超聲換能器、致動器、微位移器等，使其成為鐵電領域的研究熱點，但如何生長出滿足應用要求的單晶材料卻一直是一個困擾的問題。
  8. Abstract : the thermogram of s. dysenteriae of fungistatic action w as determined and the growth rate constant at different concentration of medicin e was calculated, and the optimum allowable concentration of the co salt complex abtained

    文摘:微量量熱法測定並研究計算了在不同濃度的鈷配合物作用下痢疾桿菌的生長速率常數和最佳用藥量。
  9. Growth is a function of turgor.

    生長是膨脹的一個常數。
  10. The results indicate that ( a ) before heat treatment, with the increasing of substrate temperatures, content of lower valency ( tij + ) decreases, the stoichiometric proportion of o / ti in all samples is about 2 ; the films have amorphous incompact columnar fiber structure, and with the increasing of substrate temperature, the size of columnar fiber increases ; the films have good hyalescence in visible range and great absorbability at the wavelength of 350nm ; optical constants of the films are calculated from the transmittance spectrums in visible range by mathematical analysis of the orders of interference, the results show that the refractive ind

    研究結果表明， （ a ）熱處理前，隨著基片溫度的增加，薄膜中的低價氧化鈦含量逐漸減少，化學計量比趨于o ti = 2 ；薄膜具有非晶態不緻密的柱狀纖維結構，柱狀纖維的尺寸隨基片溫度的升高而增加;薄膜在可見光范圍內透明，在波長為35onzn時嚴重吸收，利用干涉級次法分析了薄膜的光學常數，結果表明，薄膜的折射率隨基片溫度的升高而增加，根據計算結果得到了tioz薄膜在不同基片溫度下的折射率色散曲線。
  11. Abstract : determined the power - time curves of the promoter bacteria of ganoderma lucidum for e. coli, using 2277 thermal activity moniter, a new experimental model of promoter bacteria growth were established. the growth rate constant and heat output at different concentration of ganoderma lucidum have been calculated. from - c and q - c curves the optimum concentration has also been established

    文摘:用熱活性檢測儀測定了天然藥物靈芝對大腸桿菌起促菌作用的熱功率-時間曲線，並根據曲線建立了細菌生長的新的實驗模型，按新模型計算了促菌作用下的生長速率常數，發熱量及最佳促菌濃度。
  12. During the calculation of crystallography, we always need to make some calculation such as vector length, angle between vectors or planes etc. this is a group of scilab functions which can make some common calculation

    晶體學計算過程中經常需要計算矢量長度、矢量夾角等。此scilab工具箱提供了一組適用於任何晶體結構的函數，可以在輸入晶格常數的前提下，計算一些常用的晶體學數據。
  13. Gin is the abbreviation for grouting intensity number. it is showed by the product of the final grouting pressure p ( unit : mpa ) on the grouting section and the grouting volume v ( unit : l / m ) on every one meter of the grouting section, which means the energy consumed on every one meter of grouting section. according to gin method, if during the grouting construction, same energy is consumed on every grouting section, i. e. gin keeps to be a constant, an approximately uniform impervious curtain can be obtained

    Gin （ groutingintensitynumber ）即灌漿強度值，它用灌漿孔段上最終的灌漿壓力p （ mpa ）和單位灌漿段長度漿液灌注量v （ l / m ）的乘積表示，其含義為單位灌漿段上消耗的能量， gin法灌漿認為在灌漿施工中，保持各灌漿孔段上消耗一致的能量，即保持gin為常數，便可形成一道大致均勻的防滲帷幕。
  14. The average slope of long reaches of rivers must be constant over periods of a few years or decades.

    河道長河段的平均坡降，必須是在若干年或幾十年周期中為常數。
  15. The second part studies optimal pure proportional navigation ( ppn ), with time - dependent gain of navigation to maneuvering target based on proportional navigation theory. optimal gain of navigation is constant for ppn without maneuvering ; based on this, solution of time - dependent gain of navigation is given by iteration approach, and the time required for capture is given, the times of iteration is decided by comparing this time with the iteration step

    對目標機動的追逃問題，考慮導航增益可為任意實數，且隨時間和初始條件改變，這一思想是建立在目標非機動的純比例導引制導規律，最佳導航增益為常數的基礎之上，利用迭代的方法，給出了時變的導航增益的求解方法，並給出了實現捕獲所需的時間，用此時間與迭代步長進行比較，判定迭代次數。
  16. For large wavelengths, the velocity is constant

    對于長波長的波，傳播速度是常數。
  17. 3. based on the wall equation and k - ? model, the variable c ? and the variable lm were used to improve the numerical simulation of pipe flow with the tripping annulus at the inlet

    在壁函數和-模型的基礎上，採用了變模型常數c _ （ l ）和變混合長度l _ m的方法對入口處帶有擋環的圓管湍流模擬計算進行了修正。
  18. In accordance with different tripping annulus at the inlet, the numerical simulations of the reattachment length were performed with the " variable c ? " model. in the range of experimental reynolds number, the tripping effect on the reattachment length was developed in the figure. the dependence of the reattachment length on reynolds number was also analysed in the different status of pipe flow

    利用變模型常數的-模型針對不同尺寸的擋環進行了再附著長度的模擬計算，在實驗雷諾數范圍內，建立了入口處擋環對再附著長度影響的變化曲線，分析了再附著長度在不同的管流流動狀態下相對于雷諾數的變化情況。
  19. The goal of this paper is to study fully developed turbulent pipe flow. with the aid of the tripping annulus at the inlet, based on the experimental investigation and numerical simulation, detailed researches on a few basic rules in pipe flow have been performed, such as mean velocity profile, relative intensity of turbulence, the log - law, von karman ' s constant and reattachment length, thus filling some gaps in the research work of predecessors and obtaining a far - reaching understanding

    本文的目的就是利用入口擋環進一步探索充分發展的圓管湍流，通過實驗和數值模擬對圓管湍流的若干基本規律，如平均速度分佈、相對湍流強度、對數定律、馮?卡門常數和再附著長度等進行詳細的研究，以填補前人研究中的一些空白，並獲得更深入的了解。
  20. Kinetic parameters of the bacteria growth were obtained, which were in good agreement with those obtained from the pour plate count method. the influence of the initial bacteria concentration was also investigated

    得到了該生長過程的實時生長曲線和該細菌有關的生長常數，探討了初始細菌數對這些常數的影響。
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