It was found that solvent pyridine plays an important role in the formation of nanocrystalline nickel selenides due to its appropriate coordinative ability and alkalescence.

又在50℃的溫度下www.88888，在吡啶溶劑中以水和肼為還原劑，得到了Ni〓Se和NiSe〓黄色入口网址，納米晶溶劑吡啶由于具有合適的配位能力及堿性而在反應(yīng)中起了關(guān)鍵作用。

In order to investigate the effects of thecomposition and structure of the conductive coordinative polymolecular compounds on theirconductivity,we choose the functional organic molecules that can form stable free-radicalions as the ligands,investigate the coordinative bridging interaction of the transition metals orrare earth ions with the ligands and the compositions and properties of the complexes.It willprovide scientific basis for the development and application of new conductive materials.

為了探討和總結(jié)導(dǎo)電性配位高分子化合物的組成及結(jié)構(gòu)與化合物導(dǎo)電性能的關(guān)系和規(guī)律又爽又粗又大欧美日韩视频，我們選擇了能形成穩(wěn)定自由基離子的功能性有機小分子化合物作為配體，研究它們與過渡金屬離子及稀土離子的配位橋聯(lián)作用以及有關(guān)配合物的組成和性質(zhì)欧美性爱视频在线观看国产日本欧美亚洲日韩，從而為新型導(dǎo)電材料的開發(fā)和應(yīng)用提供科學依據(jù)。

This paper analyses the relative results of coordinative mechanism in supply chain. The coordinative and control mechanism in supply chain should adopt the mixed mode.

在總結(jié)分析了現(xiàn)有供應(yīng)鏈合作機制的相關(guān)研究成果后99久久国产热无码精品，指出供應(yīng)鏈中的協(xié)調(diào)與控制機制應(yīng)采用混合式的方式。

perceptual：知覺的

知覺的(perceptual)、協(xié)調(diào)的(coordinative)資源變的更經(jīng)濟. 「內(nèi)隱」與「外顯」知識的互動稱為「反射」(reflection),...