variance

英 [ˈveəriəns]

美 [ˈveriəns]

n.  变化幅度; 差额

复数：variances　

TOEFLGRE化学

Collins.1 / BNC.7319 / COCA.5027

习惯用语

n.

at variance (with sb/sth)
• 看法不一；矛盾；冲突
  disagreeing with or opposing sb/sth
• These conclusions are totally at variance with the evidence.
  这些结论与证据完全相悖。

牛津词典

noun

• 变化幅度；差额
  the amount by which sth changes or is different from sth else
  1. variance in temperature
     温差
  2. a note with subtle variances of pitch
     音高有细微变化的音符

柯林斯词典

• PHRASE （与…）不一致，相矛盾
  If one thing isat variance withanother, the two things seem to contradict each other.
  1. Many of his statements were at variance with the facts...
     他的说法有很多和事实不符。
  2. This idealistic concept is at variance with reality.
     这种理想主义的观念和现实相矛盾。
• N-VAR 差异;不同
  Thevariancebetween things is the difference between them.
  1. ...the variances in the stock price.
     股票价格的变化
  2. ...total revenue variance.
     总收入的差异

英英释义

noun

• an activity that varies from a norm or standard
  1. any variation in his routine was immediately reported
  Synonym:variation
• an official dispensation to act contrary to a rule or regulation (typically a building regulation)
  1. a zoning variance
• the quality of being subject to variation
  Synonym:variabilityvariableness
• a difference between conflicting facts or claims or opinions
  1. a growing divergence of opinion
  Synonym:discrepancydisagreementdivergence
• the second moment around the mean
• discord that splits a group
  Synonym:division
• an event that departs from expectations
  Synonym:discrepancyvariant

双语例句

• A theoretical distribution with finite mean and variance.
  平均数和方差数都为有限的一个理论分布。
• Stable results and high variance reduction using the compound method have been obtained.
  使用组合方法获得了稳定的结果和较大的方差减缩。
• Methods: Orthogonal design and analysis of variance were used.
  应用正交设计实验方法和方差分析。
• This components of parameter variance depends on the sample size.
  参数方差的这一组成部分依赖于样本容量。
• It is called variance ratio and the exact relation between variance ratio and correlation coefficient is also built.
  并找到了方差比与相关系数之间的内在联系。
• In this paper, minimum variance filtering and smoothing algorithms of a class of non-causal systems are discussed.
  研究一类非因果系统的最小方差滤波与平滑。
• Methods: Under the same conditions, the method of life table and analysis of variance was used.
  方法：在相同条件下，采用生命表的方法和方差分析。
• Improvement of interval estimation for generalized variance in multivariate normal distribution;
  本文对两正态混合分布参数估计问题进行了研究。
• On the contrary, a risk is some condition that adds to project variance.
  反之，风险是向项目方差中加入的某个条件。
• Many of his statements were at variance with the facts
  他的说法有很多和事实不符。