Since a dummy index just indicates summation, it is immaterial which symbol is used.
由于哑指标只是表明求和，所以它使用什么符号是无关重要的。
The humans body damnification mechanism and index are briefly reported in this paper, and the automobile obverse impacting technics experiment dummy according to Asian stature is explained.
简述了人体损伤机理和损伤指标，并介绍了按照亚洲人身材特点研制出的汽车正面碰撞工艺实验假人的结构特点。
Dummy variables can only describe the discrete changes of price index, for instance, using dummy variables in sales off-season can not provide upper precision estimating result.
价格指数的变化是连续性的，而虚拟变量只能描述价格指数的离散变化，比如在销售淡季虚拟变量法就不能提供精度较高的分析结果。
Dummy variables can only describe the discrete changes of price index, for instance, using dummy variables in sales off-season can not provide upper precision estimating result.
价格指数的变化是连续性的，而虚拟变量只能描述价格指数的离散变化，比如在销售淡季虚拟变量法就不能提供精度较高的分析结果。
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