化合物

In comparison with acetyl acetate method we found that in the reaction process the concentration of enol-like compound had some effect on the reaction rate.

通过与乙酰丙酮法的比较，认为在反应过程中，成环物质的烯醇型的化合物含量对反应速度有影响，烯醇型的化合物含量越高，反应温度越低。

In this paper, the inhibition of growth by organic compounds, limited use of organic compounds, central metabolic pathways, and transport mechanism of the extremely acidophilic obligately chemolithoautotrophic thiobacilli are reviewed, as well as the current research progress in their genetic modification to use organic compounds.

主要对极端嗜酸性专性化能自养硫细菌有机质代谢的研究进展进行了综述，其中包括有机化合物的抑制作用、有机化合物的有限利用、中心代谢途径及物质的转运等，还包括专性化能自养硫细菌有机质代谢遗传改造研究的最新进展。

Using methanol we can synthesize diverse compound in addition, product pesticide,medicament,plastic.

通过甲醇可以合成多种甲基化合物及羰基化合物。另外，还可以生产农药、医药、塑料。

The toxicity of dioxins is dependent on their affinity to AhR. And if this affinity data would be gotten, we could know their harm degree and have ability to analyze and control these toxins quickly and effectively.

Dioxins与受体AhR相互作用的强弱决定着化合物毒性的大小，如能获得化合物对AhR的亲和性，就可以了解其危害程度，从而为快速有效对毒物进行分析及控制提供条件。

A further advantage of this method of working is that the sodium alcoholate can very conveniently be made by mixing the sodium with a proportion of the hydrocarbon which is to be used as the solvent for the reaction and adding the required amount of the alcohol thereto.

另外这种方法还有一个优点：纳和一定比例的碳氢化合物混合在加入所需数量的乙醇可以方便制备乙醇纳，而碳氢化合物可以作为溶剂使用。

It was found that condensation reactions of indoles with aldehyde proceeded smoothly in high yields at room temperature.

相比较而言，在同样反应条件下，双吲哚烷基化合物的合成比三吲哚烷基化合物的合成更容易。

These chemical compounds were found for the first time from this alga and compound 9 had never been reported in previous literatures.

这些化合物均是首次在该种海藻中得到的，经CA检索化合物9未见文献报道。

Birch Reduction, one of the most powerful synthetic methodologies available to organic chemists, provides a bridge between aromatic and aliphatic compounds and makes a huge arsenal of aromatic derivatives readily available for construction of alicyclic molecules, which are possibly converted into various natural products.

Birch还原是联接芳香族和脂肪族化合物的桥梁，它使许多芳香族衍生物成为合成脂肪族化合物，尤其六元脂环天然产物的起始原料，因此Birch还原是有机合成中很有用的方法。

Alkaloid One of a group of organic compounds found in plants, which are poisonous insoluble crystalline compounds.

生物碱：一种在植物中发现的有机化合物，通常是有毒的、不溶于水的结晶化合物。

The compound is a new alkaloid compound, which is extracted from the Chinese herbal medicine incarvillea delavayi.

该化合物是一种新的生物碱化合物，从中药材红波罗花中提取获得。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。