The key point of this method is to find out the item which is of low mean value but of high relative coefficient, which will provide basis of decision making for later training.
利用四象限分析法处理培训评估调查数据，其核心思想是找出那些均值低但相关系数高的评价项，为以后的培训决策提供依据。
Based on new experimental data at home in recent years, the approximate value of mean value coefficient and the practical formulas for computing prestress losses are presented.
根据近年来国内新的试验资料，提出了中值系数的近似位以及相应的预应力损失实用计算公式。
The results indicate that the mean value of the scattering coefficient was 850.
结果表明：观测期间气溶胶散射系数小时平均值为850。
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