查询词典 nicotine

So it is feasible that application with plant hormone to regulate content of Nicotine in the course of production.

因此，在烟叶生产的过程中，施用一定浓度的激素调控烟碱的含量在适宜的范围是可行的。

It is known that tobacco contains nicotine and other harmful products to health.

大家都知道烟草含有尼古丁和其它对身体有害的物质。

The smoke of cigarette contains extremely toxic Nicotine , Tar, nitrosamine ,Carbon monoxide and Radiation. This substances are directly or indirectly lead to lung cancer.

香烟烟雾中含有毒性极大的尼古丁、焦油、亚硝胺、一氧化碳、放射性物质，这些物质都是直接或间接导致肺癌发生的凶手。

The results showed that exogenous substances could promote the upper leaf area increase, and accommodated the thickness of palisade tissues, spongy tissues and the cell density of palisade tissues dynamic changes, and decreased leaf thickness, loosen the tissue, and increased the potassium content, while reduced nicotine content.

结果表明，外源物质可促进上部叶面积增大，调节叶片栅栏组织、海绵组织厚度和栅栏组织细胞密度的动态变化，促使叶片厚度降低，组织变得较为疏松，促进钾素含量提高和烟碱含量降低。

Given the known reaction mechanism and general chemical considerations, we propose that nicotine, when used as the carbon source by P. putida J5, is catabolized to pyruvic acid via pyrrolidine pathway and then participates in the synthesis of vitamin pantothenate and CoA, which supply the energy for the normal functioning.

通过对突变位点基因的功能分析推测，假单胞杆菌可以将尼古丁代谢为2，5-二羟基吡啶，而2，5-二羟基吡啶可以进一步转化为丁烯二酸和丙酮酸，进而参与了泛酸和 CoA 的合成，为生理代谢提供基质。

Abstract〕 Objective: To study the effect of nicotine on dental papilla mesenchymal cells.

摘要〕 目的：探讨尼古丁对牙乳头间充质细胞增殖的可能影响。

And the results of Friedman-test on these two correlation models of Ash,Nicotine,PEE,PEEN were 1.24,1.83,1.67,4.63 respectively,which indica...

两类近红外预测模型对灰分的预测没有显著性区别，而对尼古丁、石油醚提取物、石油醚提取物中性成分的预测有显著性区别。

RESULTS: Ninety patients were included in the analysis: 44 in the nicotine group and 46 in the placebo group.

结果：分析了90例患者： 44在烟碱组和46在安慰剂组。

The optimum conditions for extraction was proved practicable by condition filtration and orthogonal design with supersonic wave method .The results showed that the optimum conditions for extraction to ultrasonic method is : methanol (φ=40,20ml),and 15℃ for 30 min ,this paper has determined nicotine contents that is 23.50mg/g at absorption peak (λ=262nm) by HPLC with an eluent consisting of methanol –potass Phosphate alleciate (pH=3) with the recovery and coefficient of variation are 101.52% and 0.91%.

通过超声波提取方法进行条件筛选和正交化实验，确定了烟草中尼古丁的最佳提取条件，结果表明，超声波最佳条件是：甲醇浓度40%，固液比1：20，提取时间30 分钟，超声温度15℃，用高效液相色谱方法在波长262nm 处测定尼古丁的含量，流动相组成为甲醇：磷酸二氢钾缓冲溶液=10：90，测得烟草中尼古丁的含量为23.50 mg/g，平均回收率为101.52%，相对偏差为0.91%。

Field experiments demonstrated that efficacy of 30% dichlorvos and omethoate for Caloptilia dentata was over 80%, for Drosicha corpulenta was 95.9% and Psylla willieti 96.4%. For Parathrene tabanifomis, Anoplophora glabripennis, Apriona swainsoni and Panonychus ulmi also gained perfected efficiency, and injection dosage of 2.0ml/cm φ for Myzus persicae obtained 100%result, for Eriococcus lagerostioemiae which damage Punica gianatum the result was 92.96%. In all, the efficiency of 30% diohlorvos · omethoate control of most pests was better than bisultap, decis, acephate, nicotine and avermectin, etc.

田间防效结果表明30%敌畏·氧乐对元宝枫细蛾的防治效果可以达到80%以上，对草履蚧和槐木虱防效分别大于95.9%和96.4%，对白杨透翅蛾幼虫、危害新疆杨和合作杨的光肩星天牛幼虫、危害国槐的锈色粒肩天牛幼虫、危害苹果的榆全爪螨等可达到理想防效，当施药剂量为2.0 ml/cmφ时对桃蚜的防效达100%，对危害石榴的紫薇绒蚧防效可达92.96%以上。30%敌畏·氧乐对大多数害虫的控制作用优于杀虫双、敌杀死、乙酰甲胺磷、烟碱和阿维菌素等。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。