对边

If the edges are ordered pairs of vertices then we get the notions of a directed graph and directed multigraph.

如果边都是顶点的有序对，则得到有向图和有向重图的概念。

She had no way to go to take care of them, one down to earth exploded - without an "oh" that the pursuit of love, or Sally really find Sally, but love in another prison. But even in the United States after the latino hard, the book still reveal about the future of beautiful dreams and hopes. Evan LangSha spezia, want to leave mango street have a house of my own, want to find yourself to the sweet chains, to help more people find happiness... When you read her teenage little secret, whether YiZheng suddenly, then said musingly:"ah, be like me so." When I read the book in the lamp under small delicate, it seems from books out an elf, just like my favorite fairy tale, Peter pan, never island fairy, gently leap from my mind, salvage one old yellow, almost forgotten memory. So I made an illusion, like a young restore that once. When saw lang and essien spezia on her sister in the streets of the old shoes mooning, I think before age eight steal wear dad suit in front of the mirror is to imagine yourself as CEO of companies, she added, Cathy cat and queen of Egypt circles the only large friends and Sally like white crane son as pure between the friendship. Timid her cry in dining-room ate rice sandwich inside, Side mirror where film actress lips red... I glanced limpid stream of the summer as a pebble, fingers touched by watching the lamp of barley bread baking ovens, warmth, the paper seems to have touched the memory, eager to grow, and find me for my friendship, love, though I meditate on the mirror of me...

当看到埃斯佩朗莎和妹妹穿着妈妈的旧高跟鞋在大街上乱逛；我想到以前8岁时偷穿爸爸的西装在镜子前一边想象自己是某家公司的CEO，她和猫皇后凯茜、描埃及眼圈的萨丽以及唯一的大朋友鹭鸶儿之间像白纸一样单纯的友谊；胆小的她在餐厅里边哭边吃米饭三明治；一边照镜子一边想象电影中嘴唇红红的女主角……我的目光掠过清澈得像盛夏溪底的鹅卵石般的文字，指尖拂过被台灯注视过的、烘炉里的大麦面包一样温暖的纸页，似乎又触摸到了记忆里的那个，渴望长大的我，觅寻友情的我，怯弱的我，爱对着镜子冥想的我……细细咀嚼回忆，微笑不知不觉从嘴角泻出。

So we prove that Wojcickas conjecture can not come into existence when k=4.f denotes the minimum edges of domination k-edge-critical graph with n vertexes.

对于k=1和k=2，易知：Sumner猜想本文对奇数和偶数分别构造了k支配边临界图，给出了f的一个上界

The Euler-Lagrange equations and corresponding natural boundary condition are derived by the variation of Ohmic energy dissipation under the constraint of magnetic helicity balance.

在磁螺旋平衡的约束条件下，对总的欧姆耗散取变分，得出了环位形下的Euler_Lagrange方程和自然边条件。

Differential Quadrature Method, one of numerical methods of solving boundary problem of differential equation is introduced in this paper. By using DQM, the dynamic stability of pipes conveying fluid and rectangular plates under the action of non-conservative force is studied. The main research work is as follows.

本文首先介绍了求解微分方程边值问题的一种数值方法—微分求积法，然后采用微分求积法分别对输流管道和非保守矩形薄板的稳定性问题进行了分析研究，具体有如下三方面的研究内容。

First, FEM with nonhomogeneous elements is used to analyze the fracture problem of two dimensional FGM strips with inner cracks or edge cracks in the plane strain condition. The influences of geometric parameters, material graded modality and nonhomogeneity constant of the structure on the stress intensity factors at crack tips are investigated.

首先，本文采用该方法研究了平面应变状态下，含有内部裂纹和边裂纹的二维功能梯度条的断裂问题，分析了结构的几何参数、材料梯度形式和梯度参数对裂纹尖端应力强度因子的影响。

The method is convenient to be used, especially to nonhomogeneous equations and nonhomogeneous boundary value problem.

用微分算子法给出了线性扩散方程和波动方程的通解及初值以及边值相关问题的算子解，特别是对非齐次方程和非齐次边界问题处理尤其简捷适用。

Firstly, we normalized the basic voxel by constructing its minimum oriented bounding box. Secondly, we constructed its D2 shape distribution curve, and computed the values of EMD(earth mover's distance) compared with the corresponding curves of the normal cone and cylinder respectively, and the corresponding top diameters. Finally, we compared the top diameters and obtained the parameters by the bounding box.

首先建立基本体素的MOBB，对体素进行标准化；然后生成其D2形状分布曲线，计算此曲线分别与标准圆锥体形状分布曲线、标准圆柱体形状分布曲线的EMD(earth mover's distance)值以及相应的上底直径；最后通过比较两个上底直径的大小来判断此体素是否为圆台体，并由包围盒的边长给出圆台体的参数。

This paper presents a study on modeling the stability of dump slope using the techniques of limit equilibrium, numerical simulation, and numerical differentiation.

针对废渣场的废渣材料软硬比例发生了不利于堆放边坡稳定的特殊情况，应用极限平衡法、数值模拟及数值微分对渣场稳定进行分析计算。

The above presented methods are applied to solve the 2D harmonic equation. Numerical examples show satisfactory results.

对上述提出的方法，本文以二维调和方程的不同边值问题为例，推导出相应的计算公式，并在随后给出相应的数值算例，数值实验的结果是令人满意的。

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。