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The electronic interaction between the triarylamine units and porphines macrocycle in 4a-c and 10a-c were investigated by UV-vis absorption spectroscopy and fluorescence emission spectroscopy, and the results showed that there was a good energy transfer between triarylamine units and porphines.

经紫外吸收光谱和荧光发射光谱研究表明在化合物4a-c和10a-c分子中三芳胺基团与卟吩母体之间有很好的能量传递，使得三芳胺基团吸收的能量通过卟啉发色团发射出去。

Molecular orientation of copper phthalocyanine LB films was studied by polarized UV-Vis spectra, indicating that the phthalocyanine macrocycle was arranged . The existence of the nanoparticles increased the sensitivity of the composite LB films and decreased response-recovery time to alcohols.

利用LB技术成功建构了酞菁铜及其与二氧化锡复合LB膜，通过偏振紫外—可见吸收光谱证明了酞菁大环分子在LB膜中呈倾斜取向，且复合LB膜对醇类有较高的灵敏度，SnO_2超微粒子的掺杂大大降低了薄膜的响应—恢复时间。

The complexing properties of compounds 10a, 10b, 11a and 11b toward alkali metal ions were studied by 〓H NMR titration, ESI-MS, UV-Vis spectra, Fluoresence spectra and liquid-liquid extraction. The results show:(1) the 1:1 complexes were formed.(2) The calix-crown 10a, 11a have a higher selectivity for Na〓 ions, whereas 10b, 11b for K〓 ions.(3) The complexing ability toward alkali metal ions was enhanced when the calix-crown have side arm carbonyl.(3) The coordination of alkali metal ions toward phenoxy, carbonyl and crown ethereal oxygens take place by rotation around the carbon-carbon bond of carbonyl and methylene.

六，用〓H NMR滴定，ESI-MS，UV-Vis，Fluorescence，液-液萃取实验研究了10a，10b，11a和11b对金属离子的配位性质，研究结果表明：1）杯芳烃冠醚衍生物同碱金属离子形成了1：1配合物，化合物10a、11a对Na〓具有较高的配位能力，化合物10b、11b对K〓具有较高的配位能力；2）在杯冠醚环的旁边引入带有羰基氧原子的基团作为侧臂参与配位可以加强对碱金属离子的配位能力；3）金属离子分别同苯酚氧，羰基氧，聚氧醚链氧发生了配位，配位过程中侧链基团涉及到了羰基碳与亚甲基碳的碳碳键的旋转过程。

In the afternoon we'll vis IT the factory which makes minibuses and trucks.

下午我们将要参观生产小型公共汽车和卡车的工厂。

In the first part, thirty one new compounds, ferrocenyl aroyl hydrazones,norbornenyl aroyl hydrazones and aryl norbornoyl hydrazones, and forty threecomplexes have been synthesized, and characterized by means of IR,〓,TGA, UV-Vis spectra and molar conductance.

第一部分：共合成了含二茂铁基的芳酰腙、降冰片烯基酰腙等三十一个未见报道的酰腙类化合物，用其中部分酰腙与过渡金属盐和稀土金属盐反应合成了四十余个配合物。

The complexes were determined by elemental analysis,UV-Vis,FTIR photoacoustic spectrum,1H NMR and molar conductivity measurement.The domains of stability and the structure of the liquid crystalline phases are determined by optical microscopy and differential scanning calorimerials.

通过元素分析、紫外可见光谱、红外光声光谱、核磁共振氢谱和摩尔电导等分析方法表征了它们的组成和结构，并用DSC和偏光显微镜研究了配体及其锌配合物的液晶行为。

To reduce this problem,we developed a new mounting technique to replace Hoyer's mounting medium:non-vis...

对比试验显示，新装片技术可使植物碎片卷曲率从10.4%下降至3.8%，重叠率从25%下降至8.1%，说明新装片技术在减少植物碎片卷曲和重叠方面明显优于常规装片方法。

When my sis ter vis ited me in LA the other day she was shocked about how many mag a zines had my pic ture on their covers.

当我的姐姐来洛杉矶看我是，他被我在杂志封面上的照片吓到了，因为实在是太多了

Recent ly I was vis it ed by a very good friend who had jus t ret urned from a long walk in t he woods , and I as ked her what s he had obs erved.

最近我的一位非常要好的朋友来看我，她刚刚在树林里走了很长时间，我问她看见了什么。

TiO2 prepared under low-temperature conditions had a better degradation effect to RhB and 2,4-DCP, which were significantly degradated in TiO2/UV(λ≤387 nm) system by analysing UV-vis spectroscopy, FTIR and TOC. After 5 h and 7 h the mineralized rate of RhB, 2, 4-DCP was 81.2%, 86.8%, respectively.

通过分析紫外-可见光谱、红外光谱和总有机碳测定，发现TiO2/UV体系能使RhB和2，4-DCP发生有效的降解，反应5 h后RhB和7 h后2，4-DCP的矿化率分别达到81.2%和86.8%。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。