可可香草烟香精
cocoavanilla tobacco flavour
环境香烟烟雾
environmental tobacco smoke
Environmental tobacco smoking
环境烟草烟
environmental tobacco smoke
环境烟草烟气
environmental tobacco smoke
环境烟草烟雾
environmental tobacco smoke
香烟烟气净化
purification of cigarette smoke
香烟烟气颗粒物
cigarette smoke particulate extract