查询词典 ring-a-ding

On the charge distribution of the benzene ring is investigated.

分子的电荷分布是分子在主要山静电控制的一些反应中的化学活性的重要指标。

Groups on opposite sides of the benzene ring are referred to as being "Para" one to the other.

在苯环上处于相对位置的基团，位于彼此的"对位"。

Around 83 % benzene ring of polystyrene was sulfonated according to the analysis of infrared spectra.

用红外光谱仪分析得到，SSPS树脂中约83%的苯环接上了磺酸基。

Effects of the position of benzene ring on the carbon chain were also studied.

所以从理论上说，带附加基团苯环连接在靠近烷基链中间位置的长碳链烷基苯磺酸盐有可能是理想的驱油用表面活性剂的趋向。

The results show that herbicidal activity is closely related to the steric and electronic properties of the 5-position of the benzene ring.

结果表明，此类磺酰脲类化合物的除草活性与苯环5位取代基的立体结构和电场性质密切相关。

It is rather instructive for the further researches for the interaction of radiation with polymeric compounds, especially for the research of the ring benzene.

对于高分子化合物尤其是具有苯环结构的有机高分子化合物的外场作用特性的研究具有参考价值。

The influence of hydrophobic chains located at different positions on the benzene ring on the interfacial molecular behavior was investigated.

研究发现，苯环不同位置的取代烷基链长变化对扩张弹性模量和扩张粘性模量影响不同。

In the GC/MS analysis, lots of compounds containing benzene ring were detected.

在进一步的降解过程中，平菇表现了其自身特有的降解机制，取代苯环单体上的甲氧基为甲基，而后发生苯环的开裂，这与报道的白腐菌降解过程有所不同。

And 100%, respectively, under optimized reaction conditions. The existence of electron-donating groups on the benzene ring would enhance the activity of phenols.

使用苯酚作反应底物考察了各因素的影响，在优化的反应条件下，苯酚的转化率可达到99.8％，产物苯甲醚的收率高达99.8％。

In the earlier stage, hydroxyl radical does not attack benzene ring to produce phenolic compounds.

在氧化反应初期，OH自由基不直接攻击苯环而形成酚类物质。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷