16. Chemicals of interest to usability and quality

所屬欄目:英漢煙草科技

Certain chemical index,for example,petroleum ether extract(PEE),is often used as an indicator of leaf desirability,although theexact components of this fraction are not completely defined,nor are itscombustion products. A few studies are listed herein ill ......(本文共 4001 字 )     [閱讀本文] >>


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