The ratio of variance is used as the influence measure and we have also found the accurate relation between the ratio of variance and correlation coefficient.
用方差比做为判定影响大小的度量，并找到了它与相关系数之间的精确关系。
The influences of the load combination ratio, rise-span ratio, sag-span ratio and resistant variable variance on the reliable performance are discussed.
分析了荷载比例、矢跨比、垂跨比和抗力类变量的变异系数对结构可靠性能的影响。
The generalized variance ratio is a measure of efficiency.
广义方差比是一个效率度量。
Reliability index is influenced by the variance of basic parameters, resistance distribution, and ratio of live load to dead load.
可靠指标与极限状态方程中的各基本变量的变异性、抗力的概型分布、以及活荷恒荷效应比有关。
In this analysis, the degree of variability was quantified as the ratio of surgeon induced variance over total variance for the questions.
分析中，差异性程度定量于问题总方差之上的外科医师自发差异率。
The test result shows that we got the optimum emulsified diesel oil of definite mixing ratio by variance analysis of power smoke and consume oil.
以发动机功率、耗油率和烟度的综合评价值为指标进行方差分析，优选最佳的乳化油配比方案。
In order to study the variation of the stiffness, the variance ratio of the stiffness within the same horizontal or vertical plane is computed.
为了研究该机床静刚度的变化情况，计算同一水平面或竖直面内的静刚度变化率。
Through variance ratio test, we find the Chinese warrant markets do not reach weak form market efficiency, and simple trading rules of technique analysis prove some kind of efficacy.
通过方差比检验，我们发现中国权证市场不具弱有效性，简单交易规则一定程度上能在权证市场中有效预测。
The results show temperature spatial variations have high consistency, the variance ratio contribution of the first principal component is about 75%.
结果表明：祁连山附近气温在空间上具有很好的一致性，年平均气温的第一主成分的方差贡献可占总方差的75%左右。
The speed of the transportation land and the grassland are the biggest, whose annual variance ratio are 10.1% and 5.5%.
其中交通运输用地和牧草地的变化速度最大，年变化率分别为10.1%和5.5%。
We use variance-ratio methodology to test the hypothesis that stock return follows a random walk. But the results of variance-ratio tests reject the random walk hypothesis in China.
使用方差比方法检验中国股票市场上股票收益服从随机游走的假设，检验结果拒绝了该假设。
We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.
讨论多阶段抽样比率估计及其样本量选择的问题，给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。
We give the approximation formulas of the variance of the sample ratio estimator for a population mean and its asymptotically non-biased estimator in multi-stage sampling.
讨论多阶段抽样比率估计及其样本量选择的问题，给出了比率估计抽样均方误差的近似公式及其渐近无偏估计的公式。
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