infinitesimal

英 [ˌɪnfɪnɪˈtesɪml]

美 [ˌɪnfɪnɪˈtesɪml]

adj.  极小的; 微量的
n.  无限小; 极微量; 极小量

GRE

BNC.24834 / COCA.23099

牛津词典

adj.

• 极小的；微量的
  extremely small
  1. infinitesimal traces of poison
     微量毒素
  2. an infinitesimal risk
     微乎其微的风险

柯林斯词典

• ADJ 极微小的;微不足道的
  Something that isinfinitesimalis extremely small.
  1. ...mineral substances present in infinitesimal amounts in the soil...
     土壤含有的极微量的矿物质
  2. There was an infinitesimal pause.
     其中有一个极短暂的停顿。

英英释义

noun

• (mathematics) a variable that has zero as its limit

adj

• infinitely or immeasurably small
  1. two minute whiplike threads of protoplasm
  2. reduced to a microscopic scale
  Synonym:minute

双语例句

• Infinitesimal is involved in a wide range, which has a lot of very good characters.
  无穷小涉及的范围广泛，有很多很好的性质。
• The result is generalized to power exponential function, and the condition is given in which the items in sum or difference can be replaced by equivalent infinitesimal.
  将求极限时无穷小的因子可用其等价无穷小代替的结论推广到幂指函数的情形，给出了“和或差中的项”可用等价无穷小代替的条件。
• If there is any salt in this soup, it must be infinitesimal. I can't taste it.
  如果汤里有盐的话，也一定很少，我吃不出味道来。
• The inequality is used widely in functional analysis, matrix theory, it is proved again from infinitesimal calculus.
  此不等式在泛函分析、矩阵理论方面有着广泛的应用，从微积分学角度出发再给予证明。
• The body's annual intake of metallic iron is infinitesimal.
  人体对金属铁的年摄入量是微不足道的。
• Corollary 1 The product of a constant and an infinitesimal is an infinitesimal.
  推论2有限个无穷小的乘积是无穷小。
• Just an infinitesimal dose in the food supply, they said.
  他们说只会在食品中投放极小的剂量。
• The Closable Linear Operator on Banach Space and the Infinitesimal Generator of a C_0-semigroup of Contractions
  Banach空间中可闭化线性算子与无穷小生成元
• The uncertainty of these parameters will lead to the uncertainty of equivalent infinitesimal generator and also the performance function.
  这些参数的不确定性不仅导致等价无穷小生成子的不确定性，也导致性能函数的不确定性。
• This paper introduces how to make use of the replacement of same value infinitesimal in calculating limit of the undecided type.
  本文介绍了如何利用无穷小等价代换求未定式的极限，使计算简单化。