The generalized variance ratio is a measure of efficiency.
广义方差比是一个效率度量。
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%。
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。
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。
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。
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 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。
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