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- Tobacco specific nitrosamines (TSNA) is a group of potential carcinogens which have been found in tobacco, tobacco products, and cigarette smoke only. 烟草特有的N-亚硝胺（TSNA）是一组只在烟草、烟制品及烟气中发现的致癌物质。
- Objective To understand the presence of tobacco specific nitrosamines(TSNA)and volatile N-nitrosamines(VNA)in cigarette smoke in China. 目的了解卷烟的烟气中烟草特有亚硝胺(TSNA)和挥发性N-亚硝胺(VNA)的情况。
- This paper is an attempt to study the content of pigments, polyphones and tobacco specific nitrosamines in the tobacco leaves of Honghuadajinyuan, G28, K326 and Yunyan85 variety. 摘要研究比较了红花大金元，G28，K326，云烟85等4个品种烟叶的色素、多酚化合物、烟草特有的亚硝胺含量及主要化学成分和感官评吸质量等品质因素的差异。
- The air was reeking with the smell of tobacco. 空气中弥漫着烟草的气味。
- He tamped down the tobacco in his pipe. 他把烟丝紧紧摁实在烟斗里。
- He rammed the tobacco into his pipe. 他把烟丝塞进烟斗。
- Education should not be restricted to any one specific age group. 教育不应限制在任何特定的年龄组上。
- In some countries tobacco is a government monopoly. 在有些国家烟草是政府的专卖品。
- Tobacco fumes filled the air in the room. 室内的空气中充满了香烟的烟雾。
- He gave us very specific instructions. 他给我们做了非常明确的指示。
- She cannot stand the smell of tobacco smoke. 她受不了香烟的气味。
- Can I trade my tobacco for your matches? 我用烟草换你的火柴行吗?
- This is a mixture of the best tobacco. 这是由最好的烟叶配制成的。
- Do you smell the reek of stale tobacco? 你闻到发霉烟草的臭味了吗？
- There is a specific tool for each job. 各工种配备特定的工具。
- But that all depend on the specific circumstances. 不过，那要看具体情况而定。
- He stank the whole house out with his tobacco smoke. 他吸烟把整所房子弄得难闻极了。
- He held fire on specific foreign policy question. 他对具体的外交政策暂不表态。
- There is no specific remedy for the malady. 没有医治这种病的特效药。
- Quinine is a specific for malaria. 奎宁是治疗疟疾的特效药。
