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

• 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。
• 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。
• 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；
• 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。
• 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。
• 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。
• 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；
• 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；
• 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；