variance history 变迁史
Chapter 3: history variance and appraisal of China’s food safety control.
第三章，中国食品安全控制的历史变迁及评价。
参考来源 - 中国食品安全控制研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The Rockets I can kind of see, since they seem like a higher variance team (lots of new players, really bad defensive history, etc).
火箭的我还算能理解，因为他们像是不确定性更高的球队(很多新球员，有很差防守的传统，等等)。
First, by comparing the results of 102 exercisers, multivariate analysis of variance results showed that exercise history and the project of exercise have a significant main effect on the psychology.
首先，对102名锻炼者进行横向比较，多元方差分析结果表明，锻炼年限和锻炼项目对心理效益有显著主效应。
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