四边形

Compound 4 exhibits an unusual 2-D (4,6)-lattice-type network constructed by the [Co222]2- dimers and [Co(H2O)2]2+ units. As for Compound 5, four basic units link to each other form an approximately parallelogrammic pore, which constructed a 2-D covalent bond double-layers network.

化合物4展现出由[Co_2_2_2]~(2-)二聚体和[Co(H_2O)_2]~(2+)组成的具有4、6两种格子的不同寻常的二维网状结构，化合物5以类平行四边形孔道为基本单元构筑了二维共价键网络结构。

It avoids the parallelogrammical output machine with a complicated planetary wheel system and the flexible wheel of resonance wave transmission, shortens the movement chain observably and reduces the loss of movement transfer.

偏心轮推杆行星传动属于活齿少齿差传动，它的推杆结构成功地解决了输入轴与输出轴同轴的问题，避免了复杂行星轮系的平行四边形输出机构和谐波传动的柔轮，显著缩短了运动链、减少了运动传递的损失。

Results: The distance between medial wall of the basal turn of the cochlea and the porus trigeminus was about (10.36±1.50)mm.

结果：耳蜗基底圈的内侧壁至三叉神经孔的距离为(10.36±1.50)mm，下颌神经与岩浅大神经交点和内耳门后缘的连线至三叉神经孔的距离为(8.04±0.99)mm，提出耳蜗的定位四边形。

The study of crystal structure indicates that the complexes belongs to tetragonal,14(1)/a, a=b=27.047(5) A, c=14.103(3) A, a=b=y =90,V=10317(4)A3, Z=16, Dc=1.071g/cm3, F(000)=3408, R,=0.1395, R2=0.1766 and every unit of the tetranuclear complexes is four-coordinated to tridentate ligand and nitrogen atom in pyrazolone from other ligand. The complexes is slightly deformed square-planar geometry.

晶体结构研究表明，该配合物为四方晶系，空间群I4(1)/a，a=b=27.047(5)，c=14.103(3)，α=β=γ=90°，V=10317(4)，Z=16，Dc=1.071g/cm~3，F(000)=3408，R_1=0.1395，ωR_2=0.1766，其结构单元是由一个三齿配体中的ONO和另一个配体吡唑啉酮环二位上的N配位后形成略微畸变的平面四边形构型，其中Cu的配位数为4。

The model is composed of six primitive and six objects. The primitive elements are vertex, segment, triangle, secund quadrilateral, QTPV and DEM, respectively. And the objects are point, line, surface, volume, complex and spatial object, respectively.

模型包含顶点、线段、三角形、侧面四边形、似三棱柱体元和DEM 6个基本元素，同时包含点对象、线对象、面对象、体对象、复杂对象、空间对象等6个对象。

The results of XRD indicated that the addition of lanthanum in skutterudite could enhance the formation of skutterudite during the synthesis process. The content of skutterudite increases with the increase of the filling fraction in 〓. The lattice parameter of filled skutterudite increases with the increase of lanthanum filling fraction. It is caused by the deformation of Sb〓 ring arising from the "rattling"of the filling atoms in the voids in skutterudite.

对不同填充率方钴矿La〓Fe〓CoSb〓材料的XRD研究发现，镧元素的引入可以促进方钴矿相的合成，相同条件下合成的方钴矿的纯度随镧填充率的增大而提高，材料的晶胞参数随镧填充率的提高而增大，这是填充原子在方钴矿晶体的的孔隙内震颤和晶胞内Sb〓四边形发生扭曲变形所致。

The two stars shining on the left-hand side of the parallelogram are Sulafat and Sheliak.

位于四边形左手边的两颗星星是Sulafat和 Sheliak。

For thecopper and silver complexes, tripodal ligands exhibit rich coordination forms, andthe coppers exhibit different geometry such as square-plan, square pyramidal, andtrigonal bipyramidally geometry.

在铜、银配合物中，三脚架配体表现出多种配位方式，铜离子有平面四边形、四方锥、三角双锥等不同的空间构型。

These are the square envelopes with slots of 10mm, 5mm and 0mm. The critical heating power of the two slotted square envelopes are both 21 Watts, but for the case of the unslotted envelope it is much smaller.

对圆内四边形开缝为10mm，5mm，0mm三种情形，实验结果表明在实验Ra范围内，存在振荡解，其中两种开缝情形下稳态解转变为振荡解的临界加热功率都是21W，而开缝为零的情形下临界加热功率则要小得多。

It bifurcates from the square pattern as the applied voltage increasing.

实验发现，随外加电压的升高，系统经历从四边形斑图到蜂窝六边形斑图的演化过程。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。