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Now the researchers are test roasting a stomach-soothing N-methylpyridinium blend.

现在,研究者们正在测试烘培一种能够舒缓胃部的含N -甲基吡啶的混合物。

The electrochemical behavior on tetramethylquinone in n-butylpyridini-um chloride-aluminum chloride, a room temperature molten salt , is dependent on theacidity of this melt.

四甲基苯醌在氯化正丁基吡啶-AlCl_3室温熔盐中的电化学行为,和室温熔盐的酸碱度有关,在碱性熔盐中,四甲基苯醌以不络合的形式存在,电极上的还原过程是一个ECE过程;在酸性熔盐中,形成络合物TQ(AlCl_3)_m,络合数m为1,2,3,随熔盐酸度变化,此外,醌类物质芳香环上的取代基,也影响其电化学性质。

Photoactivated cleavage of pBR 322 DNA by a series of ruthenium polypyridyl complexes has been studied. The experimental results were compared with our previous observations using spectroscopic methods and viscosity measurements.

研究了一系列钌多吡啶配合物对pBR 322 DNA 的光断裂作用,并与光谱法和粘度法的研究结果进行了对比。

M. McCarron III et al.(1984),4[2W12O38].6H2O, a colorless crystalline compound, was prepared by the reaction of white powdery tungstic acid with an aqueous solution of pyridine.

通过粉状白钨酸与吡啶水溶液反应成功地制备了一种无色的晶体(C5H5NH)4

The R f value of the glucosamine sulfate was 0.36 measured by paper chromatography with the solvent system of pyridine, ethyl acetate, water and glacial acetic acid (5∶5∶3∶1 in volume).

经纸层析鉴定,以吡啶、乙酸乙酯、水和冰醋酸按体积比 5∶5∶3∶1组成的溶剂系统进行展层,氨基葡萄糖硫酸盐的Rf 值为 0 。36。

The Rf value of the glucosamine sulfate was 0.36 measured by paper chromatography with the solvent system of pyridine, ethyl acetate, water and glacial acetic acid (5:5:3:1 in volume).

经纸层析鉴定,以吡啶、乙酸乙酯、水和冰醋酸按体积比5:5:3:l组成的溶剂系统进行展层,氨基葡萄糖硫酸盐的Rf值为0.36。

Objective: To study the antagonism of dihydropyridine calcium channel blocker nicardipine against pentylenetetrazol kindling.

目的:研究二氢吡啶类钙通道阻滞剂尼卡地平对大鼠戊四唑化学性点燃的拮抗作用。

In this article the mechanism, synthesis process , application and development of the synthetic technology of nicotinic acid are introduced.

综述了烟酸的作用机理、合成工艺、应用及研究进展,从合成方法上看,一般分为试剂氧化法、氨氧化法、气相氧化法、电化学氧化法、生物氧化法和吡啶羟基化法等。

Red sun of the Group of paraquat, the herbicide, and other chlorpyrifos products as raw materials need to pyridine.

的红太阳集团的百草枯,除草剂,毒死蜱等为原料的产品需要吡啶

Of or relating to the specific pairing of the purines and pyrimidines between strands of a DNA or an RNA molecule.

杂环芳香族结构类如吡啶、嘧啶类化合物在1600厘米-1(6.25微米)区域也有相似的一组谱带。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力