英汉例句

• the equations of wave propagation in piezoelectric cylindrical bent rods were established in an orthogonal curvilinear coordinate system (r, s).

  利用矩阵和一个微商公式，把变量替换法求正交曲线坐标系中加速度运算的繁琐程度大为降低。

• in this paper the cosine transform matrix relating cartesian coordinates with orthogonal curvilinear coordinates is introduced.

  本文介绍笛卡尔坐标与正交曲线坐标的＂余弦变换矩阵＂，证明这个变换矩阵是正交矩阵。

• the difference equations for adi method with the orthogonal curvilinear coordinate are developed, which are applicable to a complex bo…

  本方法已用于计算长江重庆某河段模型流场，其结果令人满意。

• the difference equations for adi method with the orthogonal curvilinear coordinate are developed, which are applicable to a complex boundary .

  导出了本文正交曲线坐标系下的adi法差分公式。 本文方法边界适应能力强，计算时间短，内存少。

• the govern equations, the separation and numerical solution of the govern equation in the orthogonal curvilinear coordinates, the boundary condition and the movable boundary technique were given.

  给出了正交曲线坐标系下二维动床数学模型的控制方程、控制方程的高散及数值解法、边界条件及动边界技术。

• in the numerical simulation, the flow control equation in orthogonal curvilinear coordinate system is discretized by the finite volume method;

  数值计算时，采用有限体积法离散水流的控制方程；

• this paper is concerned with a turbulence mathematical model under orthogonal curvilinear coordinates including the effects of streamline curvature on turbulent flow.

  考虑弯曲边界曲率效应对水流水力特性的影响，建立了正交曲线坐标系下的紊流数学模型。

• the present study deals with the numerical calculation of the turbulent flow around airfoils in the orthogonal curvilinear coordinate system with the aid of the so-called viscous-layer model.

  本文应用粘性层模型，采用贴体的正交曲线网格，对湍流流动进行了计算。

• a finite difference method in non orthogonal curvilinear coordinate is used for the simulation of two dimensional electrostatic field. the computational formula is derived.

  讨论了计算二维静电场的非正交有限差分算法，给出了数值计算公式。

• the basic equations and the corresponding boundary conditions of the viscous-layer model in an orthogonal curvilinear coordinate system are given.

  文中给出了在任意非正交坐标下粘性层模型的基本方程和边界条件。

• using the cosine transform matrix the cartesian tensors, differential operators and related equations can be readily transformed into corresponding expressions in orthogonal curvilinear coordinates.

  利用这个变换矩阵可以方便地将笛卡尔坐标的张量表达式、微分算子及有关公式变换成正交曲线坐标的相应公式。

• amethod of generating orthogonal curvilinear grids, which is used in the numerical calculation of the gas flow in the ic engine, is presented in this paper.

  本文描述了适用流体动力学数值计算中生成正交曲线坐标网格的方法。

• by defining 「generalized velocities」 and 「generalized accelerations」, velocities and accelerations in orthogonal curvilinear coordinates are obtained.

  利用矩阵和一个微商公式，把变量替换法求正交曲线坐标系中加速度运算的繁琐程度大为降低。

• the body fitted orthogonal curvilinear grid was applied in the 2d model, when has the advantages of flexible location and fitting to the irregular boundaries.

  二维模型计算网格采用正交曲线网格，具有网格布置灵活和贴合边界等优点。

• in this paper the cosine transform matrix relating cartesian coordinates with orthogonal curvilinear coordinates is introduced. it is shown that this transform matrix is an orthogonal matrix.

  本文介绍笛卡尔坐标与正交曲线坐标的＂余弦变换矩阵＂，证明这个变换矩阵是正交矩阵。

• in this paper the curved shell elements in orthogonal curvilinear coordinate systems are established.

  本文建立了正交曲线坐标中的曲壳单元。

• by matrices and a derivative formula, a simple method of deriving accelerations in orthogonal curvilinear coordinates based on variable transformation is proposed.

  利用矩阵和一个微商公式，把变量替换法求正交曲线坐标系中加速度运算的繁琐程度大为降低。

• the 2_d average water depth mathematical model in orthogonal curvilinear coordinate system is used for the numerical simulation of the flow field in the diversion channel of large pumping station.

  应用正交曲线坐标系下的二维水深平均数学模型对大型泵站的引水河道流场进行了数值模拟。

• adi method is used to solve the transformed equations under orthogonal curvilinear coordinates, and the polluted matter diffusion term is considered.

  采用adi法求解正交曲线坐标系下水流及污染物浓度输移的耦合方程时，计及了水流扩散项的影响。

• the main function and features are:(1) the preprocessing module provided automatism creation and draw of orthogonal curvilinear coordinate grid.

  前处理实现了正交曲线网格的自动生成、绘制、地形数据的摘取等功能；