肯塔基大学一名化学家用简单的化学合成技术研制成功一种混合烟丝,其中尼古丁和焦油含量要比普通烟丝各低95％和20％。一些吸烟者在试吸之后表示十分满意。可是无论是香烟制造商还是那些对烟草代用品一直怀有戒心的广大吸烟者却都没有注意到,对烟草进行这样 A chemist at the University of Kentucky developed a hybrid tobacco using simple chemical synthesis techniques, with nicotine and tar content as low as 95% and 20% lower than those of regular tobacco. Some smokers are very satisfied after taking a test. However, neither cigarette manufacturers nor the majority of smokers who have been wary of tobacco substitutes have not noticed that doing this