查询词典 benzene

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。

Of or relating to the consecutive positions of substituted elements or radicals on a benzene ring.

连位的苯环上''。'不断'。''的替代物或者原子团连位的

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。

Of or relating to the consecutive positions of substituted elements or radicals on a benzene ring .

产生倒位环，抑制倒位区内的重组，使倒位区段内的基因表现很强的连锁。。。。

A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions.

环核包围在抗化学反应变化的结构中的一组原子，如苯环

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。

A hydrocarbon derived from,or characterized by the presence of the benzene ring

芳烃 由苯环衍生出的、或因含有苯环而具有其特性的烃化物。

Attachment of Three Arms to a Benzene Ring.

扣押了三个苯环。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。