十二面体的

The results indicate that the foamed metals have the structure of dodecahedron with pentagonum casement toward space outspread. The framework self is the tube shape channels, which are cavate and nonentirely sealing. The whole framework is a maze structure connecting by this kind of channels. Folds and hollows besprinkle the surface of foamed nickel skeleton.

结果表明用本文方法制备的发泡金属是一种向空间延伸的具有五边形窗的十二面体结构，发泡金属骨架本身是中空的、非完全封闭式的管状"通道"，整个骨架就是由这种"通道"连接的"迷宫"式的结构。

A mathematical model of the semibatch foam fractionation of surfactants was developed. Foam bed is assumed to consist of equal dodecahedral bubbles at any cross section.

本文建立了间歇式泡沫分离水中表面活性剂的模型，假设所有气泡均为正十二面体，在塔的每一截面上，泡沫半径均一。

It was also found that the film of smaller grains corresponded to a smaller lattice constant of the garnet structure, which implied that fewer Bi〓 ions substituted into the dodecahedral sites in the garnet, due to the fact that the smaller grains resulted in more grain boundaries, thus leading to more serious Bi segregation in the grain boundaries.

分析表明，细小的晶粒意味着薄膜中含有更多的晶界，这样将导致Bi组分在晶界上的偏析较显著，而进入石榴石结构中氧十二面体间隙的Bi〓较少，对于Bi，Al∶DyIG来说，石榴石相晶格常数与{Bi〓}〓呈正相关关系，由此可以解释具有细小晶粒的薄膜对应较小的石榴石相晶格常数。

The resulting materials were characterized by x-ray diffraction, Fourier transform infrared spectroscopy, Nuclear magnetic resonance and Photoluminescence. Those spectra reveal that by adding SiO2 to YAG:Ce precursor, the lattice constant decreases while vacancies are generate due to the co-dopant ions (Si4+) replaces in the place of Al3+ sites of YAG:Ce system. YAG:Ce phosphors with Y3+ dodecahedral site replaced by Ce3+ and diffused effectively as an activator, as a result the photoluminescence intensity increased about ~20-30%.

研究成果显示，掺杂SiO2之YAG：Ce萤光粉经过高温热处理后，由X光绕射、红外线吸收光谱仪以及核磁共振可以得知，当SiO2添加量增加时，YAG：Ce晶格常数会因为Si4+取代Al3+的四面体晶格位置而变小，同时产生将YAG：Ce之铝离子空位缺陷，使活化中心更有效地在YAG：Ce主体中扩散取代Y3+的十二面体晶格位置，提高其发光性质约20~35%。

Nanoparticle ammonium zinc phosphate with dodecahedron morphology was synthesized via the solid-state reaction at room temperature.

采用室温固相反应制备纳米十二面体磷酸锌铵，用微热量法研究该反应的标准摩尔反应焓和纳米磷酸锌铵的标准摩尔生成焓，用4种热分析法研究纳米磷酸锌铵的分解动力学。

A theoretical stress tensor model that includes surface tension forces and viscous forces is developed by considering the three-dimensional spatially periodic cells of dodecahedron. Meanwhile, the shear stress and normal stress difference under various shear rates are calculated by computer.

本文在同时考虑表面张力与粘性力的情况下，以三维模型—长菱形十二面体及泡沫的应力张量表达式为基础，得出了泡沫的剪应力及法向应力差表达式，并通过计算机进行了求解，讨论了泡沫粘度、泡沫大小等因素对剪应力及法向应力差的影响。

Each Ln ion adopts a dodecahedron coordination environment with eight coordinated oxygen atoms from two terminal monodentate coordinated FcC6H4COO- units, two terminal monodentate coordinated H2O molecules, and fourμ_2-η~2--OOCH_4C_6Fc units.

稀土离子都是八配位的三角十二面体构型，其中两个来自单齿配位的FcC6H4COO-，两个来自配位的水分子，四个来自双齿桥联的μ_2-η~2--OOCH_4C_6Fc。

The results show that the fine-grained hypidiomorphic pyrite, with a crystal form of pentagonal dodecahedron, contains more Au than others. Since the areas yield pyrite with relatively lower contents of main components S and Fe, while a greater gross content of trace elements, such as Cu, Pb, Zn, Au, Ag, are closely associated with gold deposits, the authors propose that a middle-scale gold deposit might be found in Zhaojiapuzi area; and there is a remote possibility to find a large gold deposit in Shengjingao area, wih a prospect of finding a concomitant gold deposit.gold deposits;mineralogical.

结果表明以五角十二面体晶形为特征的半自形细粒状黄铁矿含金性较高；黄铁矿主成份S、Fe含量相对低，而黄铁矿中Cu、Pb、Zn、Au、Ag等微量元素总量相对高的黄铁矿分布区城与金矿化关系密切；提出赵家堡子地区具备找到一处中型以上金矿的前景，而在生金皋地区找到大型金矿床的可能性很小，但有望找到伴生金矿床。

The results indicate that the foamed metals have the structure of dodecahedron with pentagonum casement toward space outspread. The framework self is the tube shape channels, which are cavate and nonentirely sealing. The whole framework is a maze structure connecting by this kind of channels. Folds and hollows besprinkle the surface of foamed nickel skeleton.

结果表明用本文方法制备的发泡金属是一种向空间延伸的具有五边形窗的十二面体结构，发泡金属骨架本身是中空的、非完全封闭式的管状&通道&，整个骨架就是由这种&通道&连接的&迷宫&式的结构。

Based on the complexes Nd3 2H2O, the crystal of [Nd32] (HMPA = hexamethylphosphoric triamide) has been prepared and its structure has been unequivocally established by an X-ray crystallographic study.

结果显示稀土元素Nd位于配合物分子的中心，分别与六个硫原子和两个氧原子结合，组成了具有扭曲十二面体构型的配合物。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐