知識(shí)貝殼
知識(shí)貝殼
所屬欄目：英漢煙草科技
One extensive study of the effect of filter ventilation on smoke component deliveries has been published. The tips used ranged in level ofventilation from 20% to 70%. It was shown that the level of ventilationremained essentially constant through the smok ......（本文共 8623 字 , 14 張圖） [閱讀本文] >>