1)natural boundary condition自然边界条件
1.Combineing with 4-point scheme,the traditional non-linear method for natural boundary conditions in geometric modeling is improved.针对四点法的特点 ,对传统几何造型技术中常用的非线性自然边界条件决定方法进行改进 ,基于等腰梯形四点共圆的事实 ,提出通过求轴对称点而得自然边界点的线性方法 ,很好地解决了四点法在曲面造型应用中的关键问题 。
2.The balance equation model of the bending problem of plate with beam-strengthened edges, where the natural boundary conditions are related to the higher order derivatives of the boundary tangent and normal, is the boundary value problem of the fourth-order elliptic partial differential equations.具有边梁加固的板的弯曲问题，其平衡方程模型为四阶椭圆型偏微分方程的边值问题，其中的自然边界条件涉及到了沿板边的切线和法线方向的高阶导数，对于非均匀、变厚度的板，该问题还具有“变系数”的特点。
3.The balance equation model of the bending problem of plate with beam-strengthened edges,where the natural boundary conditions are related to the higher order derivatives of the boundary tangent and normal,is the boundary value problem of the fourth-order elliptic partial differential equations.具有边梁加固的板的弯曲问题,其平衡方程模型为四阶椭圆型偏微分方程的边值问题,其中的自然边界条件涉及到了沿板边的切线和法线方向的高阶导数,对于非均匀、变厚度的板,该问题还具有"变系数"的特点。
英文短句/例句
1.The last two integrals correspond to the natural boundary conditions.最后两个积分对应于自然边界条件。
2.Dealing with Natural Boundary Conditions in Difference Equation of Poisson Equation of Three-Dimensional Spherical Domain三维球形域泊松方程的差分方程中自然边界条件的处理
3.Legendre-Tau method for a one-dimensional free boundary problem with mixed boundary condition带混合边界条件的单相自由边界问题的Legendre-Tau方法
4.The Studies of Cellular Automata Models of Traffic Flow with Open Boundary Conditions;开放边界条件下元胞自动机交通流模型的研究
5.The Self-Adjoint Boundary Conditions and Inequalities among Eigenvalues of Differential Operators;微分算子自共轭边界条件与特征值不等式
6.The Classifications of Boundary Condition of the Self-Adjoint Differential Operators and Its Canonical Form;自共轭微分算子边界条件的分类及其标准型
7.A solution to wave making problem using fully nonlinear free-surface boundary condition全非线性自由面边界条件求解船舶兴波问题
8.Some Natures of Space of Boundary Conditions for Self-adjoint Sturm-Liouville Problem自伴Sturm-Liouville问题边界条件空间的一些性质
9.iterative fulfilment of boundary conditio边界条件的迭代实现
10.Electromagnetic field boundary conditions on moving interfaces in high frequency case高频条件下运动边界的电磁场边界条件
11.Known as the "Roof of the World," Tibet has quite harsh natural conditions.西藏素有“世界屋脊”之称，自然条件十分严酷。
12.Solution of Free Vibration of Semi-boundless String under Inhomogeneous Boundary Condition非齐次边界条件下半无界弦自由振动问题的求解
13.Natural Boundary Element Method for Exterior Helmholtz Problem with Prolate Spheroid Boundary;椭球边界Helmholtz外问题的自然边界元法
14.A free boundary problem with two different free boundaries;一个带两条不同类型自由边界的自由边界问题
15.The Research of Simplification Methods of Boundary Condition for Legs of Jack-up from Integrated Structure Analysis自升式平台整体结构分析中桩腿边界条件简化方法研究
16.A study of the boundary condition in the DNS of the supersonic boundary layer flow超声速边界层流动数值模拟的边界条件研究
17.Inverse Determination of the Boundary Conditions of Two-dimensional Potential Problems by Using the Boundary Element Method;边界元法反求解二维位势问题的边界条件
18.Although situated in an outlying part of the country, Ningxia is richly endowed by nature, deserving fully the name Sai' Wai' Jiang' Nan or Lush Southern Country Beyond the Great Wall.宁夏虽地处边远，自然条件却并不差，是名符其实的“塞外江南”。
相关短句/例句
natural boundary conditions自然边界条件
1.First,test functions satisfyed natural boundary conditions are selected.本文采用Galerkin直接解法,首先选取满足自然边界条件的试函数,而后求出了系统固有频率的近似解析公式,同时也得到了极限流速的近似解析公式。
3)quasi-natural boundary condition准自然边界条件
1.In this paper the concept of cubic spline interpol an t in power exponent form is proposed, the existence of the cubic spline interpol ant in power exponent form under quasi-natural boundary condition is proved, an d the unique condition of the cubic spline interpolant in power exponent form is obtained.在准自然边界条件下,证明了三次样条插指函数的存在性,并得到了三次样条插指函数的唯一条件。
4)open natural boundary condition开口自然边界条件
5)Natural interface condition自然交界面条件
6)free boundary condition自由边界条件
1.The second is how to realize free boundary conditions.起伏地表地震波数值模拟中,如何选择适合地表的数值计算方法以及更好地实现起伏自由边界条件是2个关键问题。
2.The common program, which can calculate the lattice vibration for various crystals with NaCl structure type, has been made and it is applicable to cyclic or free boundary condition.编制了氯化钠型结构各种晶体的晶格振动通用程序 ;它适用于循环或自由边界条件 。
3.When the masses of two atoms in the lattice are very different,there are two forbidden gaps in the spectrum for free boundary condition.当晶格中２种原子的质量比增大时，自由边界条件下的频谱分布出现２个禁区；不再能分为光学支和声学
延伸阅读
边界条件分子式：分子量：CAS号：性质：当用一个微分方程描述一个化工设备的特性和各种参数间的关系时，求解这个方程必需知道这个设备的起始边界（如入口处）和终止边界（如出口处）的状态（如温度、压力、浓度等）。这些状态参数的大小称为边界条件。
