approximation

英 [əˌprɒksɪˈmeɪʃn] 美 [əˌprɑːksɪˈmeɪʃn]

n.  近似值; 粗略估算; 类似事物

复数:approximations

医学

BNC.10242 / COCA.13653



牛津词典

noun

  1. 近似值;粗略估算
    an estimate of a number or an amount that is almost correct, but not exact
    1. That's just an approximation, you understand.
      你知道那仅仅是近似值。
  2. 类似事物
    a thing that is similar to sth else, but is not exactly the same
    1. Our results should be a good approximation to the true state of affairs.
      我们的结果应该和实际情况相当接近。

柯林斯词典

  1. N-COUNT 接近;近似
    An approximation is a fact, object, or description which is similar to something else, but which is not exactly the same.
    1. That is a fair approximation of the way in which the next boss is being chosen.
      那和下一任老板的选任方式相当类似。
  2. N-COUNT 近似值;粗略估计
    An approximation is a number, calculation, or position that is close to a correct number, time, or position, but is not exact.
    1. Clearly that's an approximation, but my guess is there'll be a reasonable balance.
      很明显那是个粗略的估计,但我猜会有一笔不少的余额。

双语例句

  1. That is a fair approximation of the way in which the next boss is being chosen.
    那和下一任老板的选任方式相当类似。
  2. Clearly that's an approximation, but my guess is there'll be a reasonable balance.
    很明显那是个粗略的估计,但我猜会有一笔不少的余额。
  3. He had coarsened his voice to an approximation of Cockney.
    他让自己的口音变得粗俗起来,接近伦敦东区的发音。
  4. Finally the approximation algorithm for the minimum weak vertex cover set is analyzed based on the maximal flow partition.
    进一步分析了求解基于最大流划分的最小弱顶点覆盖集的近似算法。
  5. A successive approximation approach designing optimal controllers is developed for a class of nonlinear discrete-time systems.
    研究了非线性离散系统最优控制问题,提出一种逐次逼近方法;
  6. The Optimal Approximation of Matrices on Some Closed Convex Cone; relating to or resembling a cone.
    矩阵在闭凸锥上的最佳逼近(英文)与锥体有关或类似于锥形。
  7. A rather accurate approximation algorithm of confidence coefficients of asymmetric distribution error and its composite error is put forward.
    提出了非对称分布误差及其合成误差置信系数的一种相当精确的近似算法;
  8. The eigenvalue problem with the effective-mass approximation is solved by means of the finite-element method.
    用有限元法解出有效质量近似的特征值问题。
  9. The approximation problems of any matrix in circle matrix are studied.
    研究了任意矩阵在循环矩阵中的逼近问题。
  10. This paper proposed a new algorithm for image restoration based on spatial continuity and differential approximation.
    文中提出了一种基于微分近似、利用图像的空间连续性进行图像修复的算法。
  11. Existence, approximation and stability of integrable minimum positive solutions for the above equation are gained.
    并得到了上述方程可积极小正解的存在性、逼近性、稳定性。
  12. The Boundary element approximation for the parabolic variational inequalities of the second kind is discussed.
    讨论了第二类抛物型变分不等式的边界近似。
  13. Numerical analysis studies methods for problems in analysis using ideas of functional analysis and techniques of approximation theory;
    数值分析研究方法的分析应用功能分析与逼近论技术思想的问题;
  14. A new application of genetic algorithm in FIR filter with weighting Chebyshev optimal approximation method is presented.
    介绍了一种遗传算法在FIR数字滤波器设计&加权切比雪夫最佳逼近准则优化设计方法中的应用。
  15. The error of integration and integral sum are often considered in approximation and ( calculation).
    在近似计算中常要考虑积分与积分和的误差。
  16. If we use the steady state approximation to treat this scheme, the equations derived are more complex.
    如果我们对图解用稳态近似法去处理,则推导出的方程比较复杂。
  17. Based on the quark current, the magnetic moments operator is obtained in non-relativistic approximation.
    从夸克流出发,在非相对论近似下推导得出了磁矩算符的具体形式;
  18. The multilevel B-splines approximation is a good method for surface reconstruction.
    多层B样条方法在曲面的拟合中提供了新的途径。
  19. The method can availably solve the problems of bad training approximation and generalization.
    该方法能有效地解决训练精度和泛化能力差的问题。
  20. In addition, the curve approximation method, a new four-bar linkage theory, is introduced.
    还介绍了四连杆机构的新理论-曲线逼近方法。
  21. Some theoretical problems related to quantum adiabatic approximation is discussed in this part.
    这一部分主要讨论与量子绝热近似有关的一些理论问题。
  22. Linear approximation is used to pendulous method to get stop point and precision balance measurement of mass.
    本文对天平测量中应用线性近似于摆动法求停点和对物体质量的精密称衡作理论推证和实验验证。
  23. OK, so this one explains to you what's going on in terms of approximation formulas.
    好了,这样我就,向你们解释了近似公式。
  24. But, if you fix a point, then we have linear approximation.
    但是,如果你固定了一个点,就能得到线性近似。
  25. Using the random weighting method, its approximating distribution which is more precise than normal approximation is obtained.
    研究了一类有渐近展开分布的逼近问题,应用随机加权法给出了比正态逼近精度更高的模拟分布。
  26. The results by the small slope approximation are also compared with those of the Kirchhoff approximation with.
    同时将小斜率近似与考虑遮蔽效应的基尔霍夫近似和有关实验测量结果作了比较。
  27. PSO algorithm for polygonal approximation of digital curves restricted by the solution of reference is proposed.
    提出了一种参照解约束下的数字曲线多边形逼近的PSO求解算法。
  28. We must seek two main approximation methods of solution, the variation method and perturbation theory.
    我们必须寻求两个主要的近似解法、变分法和微扰法。
  29. The paper investigate the applications of algorithms for best approximation from polyhedrons in isotonic regression.
    研究了多面体最佳逼近算法在保序回归中的应用。
  30. Approximation methods for problems involving large state spaces are also presented and discussed.
    牵涉大型状态空间问题的近似方法也将被呈现与讨论。

英英释义

noun

  1. the act of bringing near or bringing together especially the cut edges of tissue

      Synonym:    bringing close together

    1. the quality of coming near to identity (especially close in quantity)

      1. an approximate calculation of quantity or degree or worth
        1. an estimate of what it would cost
        2. a rough idea how long it would take

        Synonym:    estimateestimationidea

      2. an imprecise or incomplete account
        1. newspapers gave only an approximation of the actual events