During different working conditions, we need repeated experiment and optimization for getting the best results of drilling and blasting method.

在不同的工作环境中，需经反复的试验与优化，才能使钻爆法施工获得最佳效果。

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A high level energy group was added into this repeated experiment. The experiment included three groups i. e. high, medium and low energy levels.

本重复试验增加一个高能组，共设高、中、低三个能量水平组。

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According to the homogeneity test for error variance on total-effect random model with three factors in double repeated experiment, the specific formulae of test statistics and test rule are deduced.

研究两次重复试验三因子全效应随机模型误差方差的齐性检验问题，推导了检验统计量和检验规则的具体表达式。

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Then they repeated the experiment using their control word instead.

VOA: special.2009.08.18

It can only confirm expected results through repeated experiment.

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To verify the findings, the researchers repeated the experiment with 67 other co-eds in long-term relationships.

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The scientists repeated the experiment on untrained volunteers and none noticed the gorilla.

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