tobacco可数吗

tobacco复数 tobaccos英 [tbk] 美 [tbko] n.烟叶、烟草制品、烟草植株

The results showed that this method proposed could be applied to multielement simultaneous determination of tobaccos.

结果表明，本文所提出的微波消解方法适用于烟草中多种微量元素的同时测定。

These cigarettes are made with a mixture of the best tobaccos.

这些卷烟是由最好的烟草配制成的。

He in that shop has bought a lot of tobaccos.

他在那家店铺了买了很多烟草。