The ideal parameter values of experimental variance function are determined via cross validation.
经交叉验证，优选出理想的实验变差函数参数值。
Experimental variance analysis shows that the peripheral velocity of the rotating screen is one of the most important factors which affect the percentage of grain separation from straw and chaff.
方差分析表明：圆筒筛速度是影响谷粒分离率的最重要的参数。
The experimental results show that the effect of rotational speed variance on the desalination and its efficiency are obvious under the same experiment condition.
实验结果表明，在实验条件相同的情况下，离心转速的变化对灰白冰的脱盐、脱盐效果均有显著影响。
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