approximation是什么意思？

approximation

英[əˌprɒksɪˈmeɪʃn] 美[əˌprɑksɪˈmeɪʃn]

• n. 接近，<数>近似值，近似额，粗略估计；

复数：approximations;

例句

• This is only a crude approximation of the actual conditions in the area. 这只是对这一地区实际情况的粗略估计。
• A rough approximation would be the dual spirals in pinwheel. 大致近似于纸风车上的双重螺旋线.
• Recent algorithms of recognizing arcs are mainly about approximation with lines. 传统的圆弧识别多是基于线段逼近.
• Its discovery engendered the'sudden freezing " approximation for relaxing nozzle flows. 这一事实的发现导致了松驰喷管流动 “ 突然冻结 ” 的近似概念.
• 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.
• Using the homotopy analysis method, the approximation solution is obtained. 利用同伦分析方法, 得到了该模型的近似解.
• In this paper, the interactional potential energy of graviton is simply discussed in tree level approximation. 在本文中, 只简单的讨论了在树图近似下引力子的相互作用势能.
• Successive approximation method is adopted in the design, manufacture, and test of freeform optics. 自由曲面光学产品设计 、 制造与检测的工艺流程,通常采取试凑法逐次逼近.
• Develops cutting plane methods, integral basis methods, enumerative and heuristic methods and approximation algorithms. 阐述割平面方法 、 整基方法 、 枚举和启发式方法和逼近算法.
• The successive approximation converter is of medium speed, and average resolution. 逐次逼近式转换器具有中等的速度和分辨率.

英语六级真题

The problem is that the statistics aren't an objective measure of reality; they are simply a best approximation.
出自-2013年6月阅读原文

柯林斯高阶英汉双解学习词典释义

• 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.
  例句
  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
  An approximation is a number, calculation, or position that is close to a correct number, time, or position, but is not exact.
  例句
  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。

英汉词典释义

• n.
  接近
  This is the nearest approximation of cost that they can give us. 这是他们能够给我们的最接近的费用估价。
  粗略估计
  This is only a crude approximation of the actual conditions in the area. 这只是对这一地区实际情况的粗略估计。 We do not have the true figures so we will have to make some approximations. 我们没有真实的数字，因此只能作些粗略的估计。

英英词典释义

• Noun
  1. an approximate calculation of quantity or degree or worth;
  "an estimate of what it would cost""a rough idea how long it would take"
  2. the quality of coming near to identity (especially close in quantity)
  3. an imprecise or incomplete account;
  "newspapers gave only an approximation of the actual events"
  4. the act of bringing near or bringing together especially the cut edges of tissue

行业词典

• 医学： 接近；近似；
  数学： 逼近；