14. General concept of leaf quality
工業(yè)科技

14. General concept of leaf quality圖片（共2張） :

        Tobacco quality represents a balance of essential properties in aproduct which meets the preference of a special group of consumers at agiven time and location. Quality therefore may be considered as desirability or usability. Many essential chemical and ......（本文共 4955 字, 2 張圖）     [閱讀本文] >>