difference operator 中文意思是什麼

difference operator 解釋
差分運算元
  • difference : n. 1. 差異，差別。2. 不和，爭論。3. 【數學】差，差額。4. 【邏輯學】特殊性。vt. 〈罕用語〉區別，使有差別。
  • operator : n 1 操作者，機務員；司機，駕駛員；【軍事】電話兵；【電話】接線員，話務員（＝telephone operator）...
  1. But the temperature difference at the vertical direction in combustion chamber in lead column, that is said by operator, is over 60 ?. ( 2 ) according to the experiences in the practice, the second layer air and the second layer gas had a little effect of support burning, and the third air has little effect for combustion, and the power to drawing exhaust gas can only be adjusted in limited range. the problems, it is said above, restricted more advance of some kinds of technology and economy target in spelter refining in new jersey furnace

    由於鋅精餾爐產量提高，一些問題開始暴露出來： （ 1 ）燃燒室?舶要求溫度差不超過10 ，而從現場反映的情況來看，燃燒室上、中、下部溫度差已超過60 ； （ 2 ）在生產實踐中，發現燃燒室第二層空氣、第二層煤氣作用甚小，第三層空氣失去助燃作用，廢氣出口的抽力可調范圍有限；以上這些問題在客觀上制約了精餾塔在鋅精煉中各項技術經濟指標的進一步提高。
  2. In the thesis, the fundamental formula of ffd method derives from the square root that is approximated by a continued fraction expansion in the one - way wave equation. optimizations of the parameters of the finite - difference operator improve the validity of the method

    本論文用連分式近似單程波波動方程中的平方根導出ffd演算法的基本公式，並對ffd演算法中的有限差分運算元進行了系數優化，進一步提高了計算的有效性。
  3. A, open and close automatically in security and reliability according to hydraulic difference without noise and in no need of operator and maintenance

    A根據水壓差自動開啟和關閉，安全可靠，無噪音，無需人員操作，無需維護
  4. It would have made no difference in the final result whatever we first applied one operator or the other.

    不管先用哪個算符，最後結果並無不同。
  5. Operator to calculate and return the difference between two numbers, and then to negate a number

    運算符計算並返回兩個數字之差，然後對一個數字進行求反運算。
  6. As a result of automobile production factory, exploitation conditions, environment and operator ' s difference, thus has brought the difficulty to formulate the reasonable rejection standard of automobile

    摘要由於汽車的生產廠家、使用條件、環境及操作人員的不同，從而為合理的汽車報廢標準的制定帶來了困難。
  7. When the author sets up the mathematics model with describing the process of two - dimensional debris flow, he develops the continuity equation by the law of conservation of mass and establishes the momentum equations by the law of conservation of momentum. the author makes full use of the advanced computer technologies, establishes the finite difference equation of numerical simulation by the differential operator fission method, and writes programs for computers which contact friendly with the other programs. the parameters are directly input on the keyboard

    在泥石流堆積數值模擬方面，作者以前人工作成果為基礎，在建立數學模型時，根據質量守恆原理，推導建立了泥石流連續性方程，根據動量守恆原理，推導建立了泥石流運動方程;在數值解法上，充分利用高速發展的計算機技術，採用運算元分裂法建立數學模型的差分格式，開放式編製程序，人機對話方式設置參數，計算機程序具有通用性、可擴展性和易維護性。
  8. Approximate difference operator

    近似差分運算元
  9. Difference from other algebraic structures which are introduced for some logic system, implication algebra is a abstraction of one logic connective, i. e. implicative operator, and other operators in it are all introduced by implicative operator. the main results of this paper is given as the following : 1

    特別值得提出的是，與其它為研究邏輯系統而引入的代數結構不同，蘊涵代數是對一個邏輯聯結詞，即蘊涵運算元（蘊涵邏輯聯結詞）抽象而得到的，其它運算元均是由蘊涵運算元誘導而得到。
  10. Oscillation of second order difference operator

    一類二階差分運算元的振動性
  11. Using the comparion theorem of difference equation, persistence theorem of discrete semi - dynamical system and stability of monotonous operator, we gain the boundary, uniform persistence and permanence of the system

    應用差分方程的比較原理，離散半動力系統的持久性定理以及單調運算元的三分穩定性，獲得系統的有界性，一致持久性，永久持久性。
  12. The - ( subtraction ) operator yields the difference of its arguments. the numeric arguments are first converted to a common type

    減）計算參數的差，數值型的參數首先轉換成通用類型
  13. Author, secondly, starts from the approximate expandness of square root operator, perform mathematical calculations for finite difference operator in frequency - space domain, fourier finite difference operator in mixing domain ( frequency - space and frequency - wavenumber domain ) and general screen operator in mixing domain, compare and discuss their precision of their wavefield, adaptability for lateral velocity variations, computation efficiency and stability. thirdly, author, applies the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) in frequency - wavenumber domain, to the prestack and poststack forward modeling and depth migration

    第二，從平方根運算元的近似展開出發對頻率?空間域的有限差分運算元、混合域（頻率?空間域；頻率?波數域）的fourier有限差分運算元、混合域的廣義屏運算元進行了推導並對其波場描述精度、對橫向變速的適應性、計算效率和穩定性進行了比較與評述。
  14. Based on the study of the method of creating short explicit difference operators, a method for creating short explicit operators is presented, which is based on discrete smooth interpolation with control of phase - shift operator

    基於對顯式差分短運算元的設計方法的研究，提出了一種基於相移運算元約束的離散光滑插值的構造一維顯式短運算元的方法。
  15. A hybrid migration method, named " fourier finite - difference migration ", is a post - stack depth migration scheme. the downward extrapolation operator is split into three operators : one operator is a phase - shift operator for a chosen constant background velocity, another operator is the well - known first - order correction term, and the third operator is a finite - difference operator for the varying of the velocity function. phase - shift downward extrapolation and finite - difference downward extrapolation preserves the advantage of phase - shift method and finite - difference method

    傅立葉有限差分（簡稱ffd ）偏移演算法是一種疊后深度偏移演算法，其向下延拓運算元是一種混合運算元，包括三項：一項是處理常速的相移運算元，一項是一階相移修正運算元，最後一項是類似45度方程的有限差分運算元，用來處理劇烈橫向變速。
  16. In this model, the operator splitting technique, staggered grid technique and finite difference method were used

    採用運算元分裂法、交錯網格法、有限差分法進行計算。
  17. In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition

    摘要通過對積分運算元譜的估計，作者給出了一階線性微分差分方程在邊值條件下解的存在唯一性定理。
  18. Operator is the binary arithmetic subtraction operator for the difference between two numeric expressions

    運算符為二進制演算法減法運算符，用於計算兩個數值表達式之差。
  19. This paper presents the following innovation : l. this paper analyzes the common sequence operators, examines the processing effect of each operator, and points out the difference of smoothness effect among these operators

    本文的主要創新點有： 1對常用的序列運算元進行分析，考察了各自的處理效果，指出不同序列運算元之間在平滑效果上的差異。
  20. Backward difference operator

    後向差分運算元
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