查询词典 nicotine

Nicotine in cigarettes can interfere with REM sleep, resulting in a decline in the quality of sleep.

香烟中的尼古丁能干扰快速动眼睡眠，造成睡眠质量下降。

What was worse, Crick was hopped up on nicotine gum.

更糟的是Crick在大力嚼戒烟口香糖

Natural pyrethrins, rothenone, nicotine extract, bordelaise mix (Copper salts up to 3 kg of metallic ion-Cu), calcium hydroxide as a fungicide

自然除虫菊酯，鱼藤酮，烟碱提取物，波特雷斯混合物（相当于3kg的金属铜离子的铜盐），作为杀真菌剂的氢化钙。

The metabolite of nicotine-cotinine in urine was assayed by means of barbituric acid. Cotinine was used as an objective indicator to reflect the smoking quantity. The urinary NO (NO-2) was determined with colorimetric estimation.

用硫代巴比妥酸法测定吸烟者尿液中尼古丁代谢产物-柯替宁作为吸烟量的客观指标，用分光比色法测定尿中NO含量，来反映体内NO水平。

The results show that during the development of the oriental tobacco leaves, the activity of acid invertase was decreased; the changes of GS reached its peak in the 20dans in Samsun, but in the 30dans in Basma and Canik ;the activity of PAL was decreased in the 30dans; The content of total nitrogen was decreased with the mature leaves, but nicotine、total carbon and soluble total sugar were increased. Different varieties, carbon and nitrogen metabolism key enzyme activity and the content of metabolites were different.

结果表明，在香料烟叶片发育过程中，酸性转化酶的活性均呈下降趋势；谷氨酰胺合成酶的活性Samsun品种在20d叶龄时最高，而Basma和Canik在30d叶龄时最高；苯丙氨酸解氨酶的活性均表现为30d时最低；随着叶片成熟总氮含量降低，烟碱含量升高，总碳、可溶性总糖随着叶片成熟其含量呈升高趋势；品种不同，碳氮代谢关键酶的活性及代谢产物的含量变化均有很大差异。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。