3.The types of tobacco

所属栏目:英汉烟草科技

The different types of tobacco differ in where and how they aregrown,how they are prepared for use in cigarettes,and what characteristics they impart to the smoke. Since tobacco is a natural product,it issubject to wide variations in properties within a g ......(本文共 13160 字 )     [阅读本文] >>


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