烟草

According to the result of this experiment,the content of total kalium in the soil decreased along with the uptake by tobacco plants.

钾素营养对改善烟草品质作用十分显著，能促进糖的积累，改善烟叶的燃烧性，且对烟叶的组织结构也有改善作用。

Professor Konrad Jamrozik, of Imperial College in London.

伦敦皇家学院的康拉德·吉姆罗兹克教授在环境烟草大会上说，在酒馆、酒吧、饭店和旅馆，二手烟每年杀死49个工作人员，使全国的工作人员中的700人因为肺癌、心脏病以及中风而死亡。

The increase in the methylene resonance signal intensity which reflects the alterations in membrane lipids and accordingly in the biophysical and biochemical characteristics of cell membrane during apoptosis was found to be closely associated with nuclear changes as detected by DNA laddering assay and the TUNEL procedure.

在用烟酰胺处理的烟草细胞中，亚甲基信号强度的增加与DNA Ladder几乎同时出现，随诱导时间的延长，亚甲基信号强度也逐渐增大，在24 h亚甲基信号强度增加约2倍。

The results of mycelium growth rate showed that the value of EC50 against Bipolaria maydis, Macrophoma kawatsukai, Fusanrium oxysporum, Fusarium solaid and Fusarium oxysporium were 0.979, 0.505, 1.733, 0.425 and 0.849mL/L. The result of spore germination proved that the value of EC50 against Alternaria longipes, Exserohilum trucicum, Fulua fulua and Fusarium solani were 1.709, 0.375, 0.445 and 1.333mL/L.

该菌株发酵液对玉米小斑病菌、苹果轮纹病菌、棉花枯萎病菌、马铃薯干腐病菌和西瓜枯萎病菌菌丝的生长抑制中浓度(EC50)分别为0.979，0.505，1.733，0.425和0.849mL/L，对玉米大斑病菌、番茄叶霉病菌、马铃薯干腐病菌和烟草赤星病菌的孢子萌发抑制中浓度(EC50)分别为1.709，0.375，0.445和1.333mL/L。

RbcL gene was obtained by polymerase chain reaction and cloned into pDM19-T vector. The positive clone identified by PCR was sequenced. The nucleotide sequence was 1266 bp long, including an ORF of 1031bp, encoding a putative 343 amino acids. The deduced amino acid sequence had a high identity above 94.13% with that of tobacco, spinach, sweet potato, corn, Arabidopsis thaliana, Oryza sativa, Vitis vinifera, Marchantia polymorpha and Citrus paradise.

阳性克隆鉴定后进行测序，序列分析结果表明：该基因片断长为1266 bp，包括1031 bp的编码区序列，编码343个氨基酸；其编码区氨基酸与烟草、菠菜、玉米、甘薯、拟南芥、水稻、葡萄、地钱和葡萄柚等9个物种的同源性94.13%以上，并构建了它们间的亲缘关系树。

Using field plot test, the control effects of three microorganic nematicides: IPC, ZK7 and 412 were tested from tobacco biological character ,infection situation and economic properties.

为了确定3种微生物杀线虫剂IPC、ZK7、412对烟草根结线虫病的防治效果，通过田间小区试验，从烤烟的生物学性状、发病情况、经济学性状等方面进行了全面考察。

Using count the leave.and flow cytometric to identifiy ploidy levels for the regenerated plants derived from antherculture in burley tobacco in this article,it shows that using count the chloroplast method could identify the ploidy levels simply and economic but it cannot identify the mixoploid accurately, so it easily lead to misidentify.

本文分别用气孔保卫细胞叶绿体计数和流式细胞仪两种方法来鉴定花药培养再生植株染色体的倍性，结果发现叶绿体计数法可以简单经济的检测烟草花药培养再生植株的染色体倍性，但它不能准确地鉴定出混倍体植株，易造成误判。

The rate of motored vehicle deaths is still substantially larger at 42,000 deaths a year.

美国最大的杀手是烟草，每年夺走44万人的生命。

The measurement of nicotine and its major metabolites cotinine and trans-3 -hydroxicotinine together with other minor metabolites (e.g., cotinine N-oxide, cotinine, and trans-3 -hydroxicotinine glucuronides) in conventional and nonconventional biological matrices has been used as a biomarker to assess the exposure to environmental tobacco smoke during childhood.

常规和非常规性生物基质内尼古丁、尼古丁主要代谢产物可替宁和反式-3-羟基可替宁及其他代谢产物（可替宁N-氧化物，可替宁和反式-3 –羟基可替宁葡萄糖苷酸）的检测可作为评价儿童期环境烟草烟雾暴露的一个生物标志物。

Nornicotine is produced by the N-demethylation of nicotine during the post-harvest treatment of tobacco leaves.Nornicotine in tobacco serves as the precursor in synthesis of the well-characterized carcinogen N'-nitrosonornicotine, one of the tobacco-specific nitrosamines, and consequently damages the health of tobacco smokers and passive smokers.

烟叶的采收后处理和加工过程中，大量的尼古丁经去甲基化作用生成了去甲基尼古丁，后者是烟草特有的亚硝胺类(tobacco-specific nitrosamines， TSNAs)致癌物——亚硝基去甲基尼古丁(nitrosonornicotine， NNN)的前体，与人类健康息息相关。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐