烟叶质量的加权关联度处于0.4~0.8，烟叶质量可用性属于中级和较高级。
The correlative degree of tobacco quality was located in 0.4~0.8 and TQU belonged to medium and higher grade.
应用灰色关联分析对河南省主产烟区193份烤烟样品的烟叶质量可用性进行评价。
Tobacco Quality Usability (TQU) of 193 flue-cured tobacco samples from the different regions in Henan was evaluated with the method of grey correlative analysis.
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