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

• 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。
• We simulate the stochastic cycle time and get its mean and variance.
  我们模拟随机的周期时间，得到平均值以及变异数。
• 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。
• 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。
• On the other hand, embracing variance leads to better results.
  另一方面，包含偏差导致了更好的结果。
• There are several pressing needs, for example, determining the bias and variance in multicenter studies.
  有几个迫切需要，例如，确定多中心研究中的偏见和差异。
• The performance of the two controllers of distillation column is evaluated by minimum variance as a benchmark.
  用最小方差准则对两个精馏塔控制系统的性能进行了分析。
• Reduced variance in estimation.
  在估值中减少的变化。
• In statistical language, this estimate is called the between-column variance.
  在统计学中这个估计值叫组间方差。
• 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。