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

• 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。
• 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

• N-COUNT 接近；近似
  Anapproximationis 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。
• N-COUNT 近似值；粗略估计
  Anapproximationis 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。

英英释义

noun

• the act of bringing near or bringing together especially the cut edges of tissue
  Synonym:bringing close together
• the quality of coming near to identity (especially close in quantity)
• 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
• an imprecise or incomplete account
  1. newspapers gave only an approximation of the actual events

双语例句

• 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。
• 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。
• 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。
• 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；
• 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。
• 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。
• 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。
• 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。
• 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。
• 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。