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1·The segmentation by taking production attribute utility as segmentation variable is based on causal variable rather than descriptive one.

以产品属性效用为细分变量是建立在因果关系变量而非描述性变量基础上的一种细分方法。

2·If not, it is not plausible that the variable is a causal factor.

如果不是，变量是一个因素这说法就是不合理的。