烟草的

In 1892, D.Ivanowsky of Russia had first shown that the causal agent of tobacco mosaic disease was filterable, but Beijerinck went much further and provided strong evidence that although the causal agent was filterable, it had amny of the properties of a living organism.

在 1892年，俄国的 D.Ivanowsky 首先证明了烟草花叶病的病原体是具有可滤过性。但是荷兰的Beijerinck研究得更深入，不仅提供了充分的证据证明尽管病原体是可滤过的，但是它却具有了生命体的所有特征。

A country honky-tonk bar reeks of tobacco, but in the Ritz-Carlton lounge it's a sure bet that any smokers will be German or Japanese tourists or tobacco company executives planning how to diversify their holdings.

乡村的下等酒吧充满了烟草味，但在里兹—卡尔顿大饭店的休息厅里，抽烟的人肯定是德国或日本的旅游者，要么就是烟草公司的主管人员，正在盘算如何使产品多样化。

The tobacco-specific nitrosamine 4--1-(3-pyridyl)-1-butanol is present in the urine of tobacco users and, at lower concentrations, in the urine of nonsmokers exposed to secondhand smoke.

烟草特有的亚硝胺4--1-(3-吡啶)-1-丁醇存在于吸烟者和被动吸二手烟的非吸烟者人群的尿液中，只是被动吸二手烟的非吸烟者人群尿液中的浓度更小。

Passive smoking, the breathing in of the side-stream smoke from the burning of tobacco between puffs or of the smoke exhaled by a smoker, also causes a serious health risk.

被动吸烟，如果吸到燃烧的烟草发出的喷烟发散出来的烟味，或是被吸烟者呼出的烟气，都会收到严重的健康威胁。

"Decades after the hazards of smoking first gained national attention, tobacco use remains the leading preventable cause of illness and death in our society," said Rear Admiral Steven K.

"几十年后，吸烟的害处首先获得国家的重视，烟草使用的仍然是领先的可预防的原因的疾病和死亡在我们社会里，说："海军少将史蒂芬k。

"No one is seriously talking about a complete ban on smoking in pubs and restaurants," said the director of ASH in 1998, adding that the suggestion was a "scaremongering story by a tobacco front group." In June 2005 Britain's public-health minister described talk of such a ban as "false speculation".

"没有人认真讨论在酒吧和饭店实行完全禁烟的禁令"， ASH的主席在1998年说，他还说，这个建议实际上是"一个烟草巨头编造的扰乱人心的故事"。2005年6月，英国公共卫生部长把关于这类禁令的讨论描述为"错误的推论"。

Many of these are actually caused by other chemicals in cigarette smoke or in smokeless tobacco products.

大多数的病实际上都是由烟中的其他的化学物引起的或无烟的烟草产品引起的。

Tobacco mosaic virus plays an very important role in the discovery of virus and several pioneers made contributions to the developmental process of virology, through which the brief history of discovery of virus can be traced.

烟草花叶病病毒在病毒的发现中有着极其重要的地位，几位病毒学研究的先驱在这方面的研究有极大的贡献，以此为线索可以看到病毒被发现的简要历史。

SHIELDS UP: Riot police took cover behind their shields as they clashed with Turkish workers of the state tobacco company TEKEL, who were protesting layoffs and the government's labor policy for second day in Ankara Friday.

盾牌行动：包括防暴警察把他们的盾牌后面，因为他们与土耳其工人的国有烟草公司Tekel的谁抗议裁员和政府的劳工政策在安卡拉的第二天星期五发生了冲突。

In an adjoining room a woman was cooking supper. Odors from strong bacon and boiling coffee contended against the cut-plug fumes from the vespertine pipe.

在隔壁的房间里，一位妇人正在做晚餐，诱人的培根的香味与浓郁的煮咖啡的气息和烟草难闻的气味一起回绕在房间里。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。