边界

Boundary and boundary conditions are an important aspect of numerical solutions of partial differential equations where the element free Galerkin method have had to surmount many initial difficulties due to the lack of a finite-element-like Kronecker Delta conditions.

边界和边界条件是偏微分方程求解中的一个重要方面。由于无单元的近似函数不像有限元一样满足可罗内克尔Delta条件，所以基本边界条件的引入是无单元方法中的一个难点。

A boundary layer numerical solution was used for the computation of combustion in hybrid rocket motor according to the boundary burning theory. Various value of mass transfer number and the oxidizer mass flux were considered in the calculation.

针对固液混合火箭发动机典型的边界层燃烧理论，用边界层的方法对固液混合火箭发动机燃烧进行了计算，计算采用二维轴对称的层流边界层方程，化学模型采用有限速率模型。

Yesterday's resolution says the present Polish border is "inviolable".

昨天的决议称现在的波兰边界是“不可侵犯的”。

It's a similar picture across the border in Ethiopia.

在边界那边的埃塞俄比亚，情况也大致相似。

Any day now, the Northern forces may pour across the new border.

北方的军队现在随时都可能大批越过新边界。

The boundery question has made things very unpleasant between the two coun-tries.

两国边界问题弄到很不愉快的地步.

Just before the town boundary fork left onto a minor road.

快到城镇边界时要走岔路的左边一条小路。

Jordan reopened its border with Iraq.

约旦重新开放了与伊拉克的边界。

Creep Compliance Boundary Elements Applied to Viscoelastic Analysis Several problems associated with discontinuous boundary elements

粘弹性边值问题的蠕变柔量边界元法边界积分方程&非连续边界元离散方法及其应用

The border between China and Korea has been formally delimited.

中国与朝鲜的边界已正式划定了.

A dual reciprocity method is proposed for the analysis of fluid sloshing in time domain.

利用双协边界元法在时域内对流体晃动问题进行分析,推导出边界积分方程及相应的边界条件.

For water, both the ratio of flow boundary layer thickness to film thickness and that of temperature boundary layer thickness to film thickness reach the minimum value under high rotor speed or the optimum feeding rate.

高转速或最佳进料量下，纯物质水流动边界层与膜厚之比及温度边界层与膜厚之比均最小，流动边界层与温度边界层存在内在联系。

Based on testifying the integrand divergence free property of the traction boundary integral equation and Stokes' theorem, the computation of traction boundary integral equation can be transformed into the evaluation of the displacement potential function on the boundary points.

证明面力边界积分方程被积函数的散度等于零，应用Stokes公式，对平面线弹性问题，将面力边界积分的求解转化为边界点的位移势函数的点值计算。

Based on the theoretical study of boundary element method, the author derives the boundary integral equations and discrete integral form about boundary element method of the EIE forward problem.

在对边界元法理论研究的基础上，推导了EIE正问题边界元法的边界积分方程和离散积分形式，得出边界积分方程的线性方程组。

the frontier between the land of the Saxons and that of the Danes

撒克逊人土地和古斯堪的纳维亚人土地的边界

The river marks the eastern perimeter of our land.

这条河标示我们的土地东面的边界.

A method for boundary measuring, data extracting and complex surface modeling based on CMM is presented.

提出了利用三坐标测量机测量曲面边界线 、 获取曲面边界点数据和构建曲面边界线的方法.

An efficient contour representing model is designed in this paper, and a new, fast algorithm based on scan line algorithm is developed for tracing, smoothing and detection of structual feature points of an image.

本文提出了一种基于有向图的边界表示模型，并实现了一种边界跟踪平滑以及特征点检测算法，只需对图像进行一次遍历，即可实现边界的平滑和特征点检测。

a dispute between the two countries about the border

两国间的边界争端

Traders generally travel safely through the border.

商人通常可以安全通过边界。

A method of boundary force is used to process rigid boundary condition in smoothed particle hydrodynamics ( SPH) simulation, and a new boundary force is given.

在光滑粒子流体动力学（SPH）数值模拟中尝试了一种处理固壁边界的边界力方法，给出了一种新的边界力形式。

They fled across the border.

他们穿越边界逃走了。

The Characteristic Inflow Boundary Conditions are used at the inflow boundary. We also set the pressure correction term at the outflow boundary.

入口边界采用特征入流边界条件，并在出口边界作压力修正。

They were heading towards the German border.

他们正前往德国边界。

In that most of the boundary layer under the action wave near shore is turbulent boundary layer, it is extremely significant to solve the problem of turbulent boundary layer.

由于近岸波浪作用下边界层多数属于紊流边界层，因此解决紊流边界层问题尤为重要。

Internal forces of elastic structures are calculated by using three-node quadratic boundary element method in which displacement and traction at elastic structures' boundary are more accurately depicted.

采用更精确地反映弹性结构边界上的面力分量和位移分量的三结点二次边界单元法求解弹性结构在边界上的位移和面力。

The ball was caught by a fielder standing just inside the boundary.

那个球被正站在边界内的守场员接住了.

Analytical solutions are obtained using Laplace transform and convolution theorem for the transient wave motion in saturated porous media under arbitrary stress boundary condition and displacement boundary condition, respectively.

利用拉氏变换和卷积定理，分别得到了边界自由排水时在任意应力边界条件和任意位移边界条件下瞬态波动过程的解析表达。

The land near the border is disputed ground.

靠近边界的土地是有争议的地区.

A preliminary experimental investigation was carried out at the low turbulence wind tunnel in Nanjing University of Aeronautics and Astronautics for the control of boundary layer transition using an active compliant wall motion.

应用主动柔顺壁运动抑制平板边界层内扰动的增长和推迟边界层转捩的实验研究结果表明，边界转捩过程中的扰动即使已发展到非线性阶段，也能被主动柔顺壁的运动所控制。