苯环

Phencynonate replace the pyrrole N-bit H chemical shift on the issue of the impact.

苯环取代对吡咯N位H上化学位移的影响等问题。

Because of the large conjugation in the structure of terphenyl and cyanogroup, these compounds should have higher birefringence.

由于此类化合物具有三个苯环和氰基组成的大的共轭体系，因此预计它们具有较高的双折射率。

In 1HNMR,the signals of hydrogen iN2-(4-fluorobenzoyl) benzoic acid became wide and shifted upfield,and those in Phen,TPPO shifted downfield.The excitation and emission spectra were recorded at room temperature.

在 1H NMR中，形成配合物后第一配体苯环上的质子峰变为宽峰且移向高场，Phen和TPPO中质子化学位移移向低场。

There exists π-π electronic transition of benzene ring and unsaturated C=C bond in vinylidene of PDBOPV at 310 and 520 nm through ultraviolet-visible absorption spectrum.

研究表明，PDBOPV在310nm和520nm处分别出现苯环和亚乙烯基中的不饱和―C═C―双键的π-π*电子跃迁。

However, the long wavelength emission did not appear in PL spectra of the polymers substituted with alkyl and alkoxy.

苯环上烷基、烷氧基取代的聚合物则具有优异的光谱热稳定性能，其在空气退火的薄膜没有出现低能的长波发射。

Ternary copolymer ammoniacal latex was obtained using the reaction of nitration and reduction reaction.

通过硝化反应与还原反应在苯乙烯的苯环上接上氨基，利用重氮化反应将登革热抗体与之相交联制成登革病毒胶乳凝集免疫诊断试剂。

For the investigation of LC cells, this research focus on the surface analyses by suing SEM, both of the morphologies caused by various photo-polymerization conditions (various intensities of UV light and the presence of electric fields) and the effects of morphology on the electro-optical properties will be surveyed. The beadlike morphology was obtained from photo-crosslinkable monomer B-ThBiPhC6Ac 2,5-Bis-[4-(6-acryloyloxy-hexyloxy –phenyl ]-thiophene.

照光聚合单体 B-ThBiPhC6Ac 2，5-Bis-[4-(6-acryloyloxy -hexyloxy-phenyl]-thiophene 在照光聚合后其高分子形成颗粒状的形态，而化学结构与前者相似的单体B-TrPhC6Ac 4，4''-Bis-(6-acryloyloxy-hexyloxy-m-terphenyl，仅后者的中心化学结构改为苯环，由其 SEM 图可以看出其高分子的形态改变为颗粒状和纤维状。

Substitutes on benzal benzene ring of BFP have different effects on .

BFP 苄基苯环上2-Cl、3-Cl、2-CH3、4-CH3、3-OCH3取代，可增强体外清除。

Substitutes on benzal benzene ring of BFP have different effects on ·OH scavenging activity in vitro. 2-Cl,3-Cl,2-CH3,4-CH3 and 3-OCH3 may enhance the activity. 3-CH3 may not change the activity.

BFP苄基苯环上2-Cl、3-Cl、2-CH3、4-CH3、3-OCH3取代，可增强体外清除·OH活性；3-CH3取代，体外清除·OH活性基本不变；2-OCH3、4-OCH3取代，体外清除·OH活性降低。

Substitutes on benzal benzene ring of BFP have different effects on ·OH scavenging activity in vitro. 2-Cl,3-Cl,2-CH3,4-CH3 and 3-OCH3 may enhance the activity. 3-CH3 may not change the activity. 2-OCH3 and 4-OCH3 may reduce the activity.

BFP苄基苯环上2-Cl、3-Cl、2-CH3、4-CH3、3-OCH3取代，可增强体外清除·OH活性；3-CH3取代，体外清除·OH活性基本不变；2-OCH3、4-OCH3取代，体外清除·OH活性降低。

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。