四角的

In this paper, firstly, the embeddability of near-triangular graphs on the orientable surface is studied. By using Petersen's Theorem about 1-factor, we first prove that for a near-triangulation on the orientable surface, its geometry dual graph has a 1-factor; then after a procedure of operation leaded by the 1-factor, we show that if a graph G triangulates some orientable surface S_g, then G has a near-triangular embedding in S_h for h = g,g + 1,...,β(G/2」, where β is the Betti number of G. Hence we obtain a conclusion: A near-triangulation of the orientable surface is upper-embeddable. As a generalization, a class of near-quadrangulation is studied, and similar results are obtained.

本文首先研究了近三角剖分图的可定向曲面嵌入性质，通过运用Petersen关于1-因子的定理，首先证明了对于可定向曲面上的三角剖分图，其几何对偶图具有1-因子；然后在1-因子的导向下，通过做一系列增加亏格的手术，证明了如果一个图G三角剖分可定向曲面S_g，那么G可以近三角剖分可定向曲面S_h，这里h=g，g+1，…，「β(G／2」，β是指图G的Betti数，从而得出推论：可定向曲面上的三角剖分图是上可嵌入的，作为推广，又研究了一类近四角剖分图的可定向曲面嵌入性质，并得到类似的结论。

The calculated results show: the ground state structures of PtNi5, Pt2Ni4 and Pt3Ni3 clusters are quadrangular bi-pyramid, and Pt4Ni2 and Pt5Ni clusters are triangular bi-pyramid with hat and triangular pyramid with quadrilateral, respectively. From the point of view of thermodynamics, PtnNim clusters are stable because of the negative enthalpy of formation; the positive NICS of PtNi5 clusters show anti-aromaticity, The negative NICS of Pt2Ni4 and Pt5Ni clusters show aromaticity. The number of the IR absorption peak of Pt3Ni3 is the most. The IR and raman absorption peak of PtNi5 , IR of Pt2Ni4, Raman of Pt3Ni3 and Pt4Ni2 have only one. The absorption peak of Pt5Ni appears in the bigger frequencies only, and is zero almost in the small frequencies.

研究结果表明：PtNi5、、Pt2Ni4、Pt3Ni3团簇的基态结构都为四角双锥结构，Pt4Ni2 和Pt5Ni团簇的基态结构分别是戴帽三角双锥和三角锥戴四边形结构；PtnNim团簇的生成焓都为负值，表明团簇在热力学上是稳定的；由NICS值可得，PtNi5团簇具有反芳香性，Pt2Ni4和Pt5Ni团簇具有芳香性；从光谱分析来看，Pt3Ni3团簇的IR较强吸收峰的个数最多，PtNi5团簇的IR和Raman、Pt2Ni4团簇的IR、Pt3Ni3和Pt4Ni2团簇的Raman只有一个强吸收峰值，Pt5Ni团簇的峰值只出现在频率较大的位置，频率小的位置几乎为零。

Sense, it also reflects the shape curve extraordinary classically elegant conference, the most prominent feature is the 1.4 with one foot bathtubs bottom, like a giant flowerpots; Ramps and special mouth design, high-mouth part of it back to the bath, a very close sense; color than ordinary bathtubs rich easy choice, and wall and floor tiles in the area making it more flexible.

除了材料上的古旧感，它的造型曲线也体现了非凡的古雅柔美，最突出的特色就是浴缸底层的四角各有一只脚，就像个巨型花盆；而特殊的斜口设计，使浴缸高口部分便于靠背，十分具有亲近感；色彩上比普通浴缸丰富，便于选择，与墙砖和地砖的配合方面更显灵活。

This paper's conclusion includes several points: the contracting process of PSDY is a quadripartite relationship that is more complex than the "third party contracts". Differences in professional decisions and poor collaboration between the departments within the Department of Social Welfare leads to insufficient definition of service, makes effective contract management difficult, provides minimum protection of client accessibility.

透过深度访谈与档案文件分析，本文获得以下几项结论：地方政府少年安置服务的委外，是一个比第三方契约理论所描述的更为复杂的四角关係，公部门內部不同科室之间的成见与隔阂，使得受託者自主空间更大，有效的契约管理更形困难，而个案的服务近用性也更得不到应有的保障。

Branchlets quadrangular to subquadrangular, 1(--2) mm in diam. when dry; leaf margin coarsely sinuate-dentate or entire; calyx and corolla outside pubescent with glandular hairs which may be accompanied by some stellate hairs

干燥时的对近四棱，1(-2)毫米直径四角形的小枝；粗的叶缘具深波状的具牙齿的或全缘；可能是伴随着一些星状毛的花萼和花冠外面被短柔毛具腺毛 6 Buddleja lindleyana 醉鱼草

Meetings with significant people, as seen through synastry and composite charts, may also link strongly to the vertex.(Think of people as constant transits.) When one person's inner planets or asteroids, angles, nodes, vertex or certain Arabic parts conjunct the vertex, there can be a feeling of fate, destiny, rightness or wrongness about the encounter.

通过观察synastry盘和组合盘，发现遇到一些特别的人一样能够触发宿命点的能量，（就把这个人的行星看作行运行星）当一个人的内部行星或者小行星，四角，月交点，宿命点或者某些阿拉伯点和宿命点合相，就能感觉到命运的力量，就会有各种好的或者不好的遭遇。

The crack that see much of most in several residence is that a layer maneuver a wall to hand over to connect place to have the stairs form the crack creation;Hand over to connect place or beam bottom and wall body to have the level crack the creation in the house noodles and the wall body;There is Shu under the first floor window sill toward the crack creation, the window sill of each floor two wall window way outside the layer four Cape existence inclined crack;Small scaled and hollow carve in the reinforced concrete pillar and the Mao a piece of fill a wall of mutually knot existence the Shu is to the crack;It is carve a piece periphery a creation crack.

随着国家保护耕地措施的实施，粘土砖的使用逐步得到控制，砼小型空心砌块在住宅工程中开始得到越来越多的应用期刊文章分类查询，尽在期刊图书馆在多层住宅中最常看到的裂缝是顶层纵横墙交接处有阶梯形裂缝产生；在屋面与墙体交接处或梁底与墙体间有水平裂缝产生；在底层窗台下有竖向裂缝产生，各个楼层的窗台两角和顶层外墙窗口四角处有斜裂缝存在；在钢筋混凝土柱和砼小型空心砌块填充墙的相结处有竖向裂缝存在；在砌块周边产生裂缝。

The crack that see much of most in several residence is that a layer maneuver a wall to hand over to connect place to have the stairs form the crack creation;Hand over to connect place or beam bottom and wall body to have the level crack the creation in the house noodles and the wall body;There is Shu under the first floor window sill toward the crack creation, the window sill of each floor two wall window way outside the layer four Cape existence inclined crack;Small scaled and hollow carve in the reinforced concrete pillar and the Mao a piece of fill a wall of mutually knot existence the Shu is to the crack;It is carve a piece periphery a creation crack.

随着国家保护耕地措施的实施，粘土砖的使用逐步得到控制，砼小型空心砌块在住宅工程中开始得到越来越多的应用在多层住宅中最常看到的裂缝是顶层纵横墙交接处有阶梯形裂缝产生；在屋面与墙体交接处或梁底与墙体间有水平裂缝产生；在底层窗台下有竖向裂缝产生，各个楼层的窗台两角和顶层外墙窗口四角处有斜裂缝存在；在钢筋混凝土柱和砼小型空心砌块填充墙的相结处有竖向裂缝存在；在砌块周边产生裂缝。

"Enjoy fashion: elegant spring and summer cool fabric" major teach you to knit crocheted vest elegant color, raglan sleeves and a simple sweater, leaf pattern of the French sleeve sweater, a continuous pattern of the four corners vest, horizontal weave bat sleeves sweater, the former open breasted vest, mesh vest ...... a deep-flavored fantasy line, deduced mature female taste; a cool fabrics, prepared substantially beautiful light.

享受时尚：优雅的春夏清爽织物》主要教会你编织优雅颜色的镂空马甲、插肩袖子的简单毛衣、叶片花样的法式袖毛衣、连续花样的四角马甲、横织的蝙蝠袖毛衣、前开襟马甲、网眼马甲……有深味的梦幻线，演绎出成熟的女性味；一款凉爽织物，备显轻盈靓丽。

The second-order perturbation formulas of the g factors and hyperfine structure constants for the lowest Kramers doublet Γ〓 of a 3d〓 ion under various octahedral symmetries (cubic, tetragonal, trigonal and rhombic) are established.

在较统一的理论模型和计算方法上建立了在各种对称性（立方、四角、三角和斜方）的八面体晶场中3d〓离子最低Kramers双重态Γ〓的g和A因子的二阶微扰公式，其中包含了前人通常忽略的组态相互作用、共价效应以及低对称畸变对自旋哈密顿参量的贡献。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。