图6碳烟累积量与压降增量的关系，随着碳烟的增加，压降明显增加，呈线性关系。

Figure 6 is the relation between soot cumulant and pressure drop increment, as soot increases, pressure drop increases obviously, in linear relation.

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目的是要那些成瘾者不断买烟，使得这个产业繁荣和有利可图。

The purpose of it was far from humanistic - addicted smokers kept buying cigarettes, making the industry prosperous and profitable.

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