查询词典 rectangular parallelepiped

Nevertheless, FDTD algorithm is implemented in rectangular mesh of Cartesian coordinates system. The curved boundaries must be approximated by staircases.

然而，FDTD算法是在直角坐标系的Yee网格下展开的，对弯曲界面只能用阶梯近似，从而带来很大误差。

According to the definition of axis straightness error ,a mathematical model was developed to evaluate axis straightness error by way of least square method in the rectangular coordinates.

根据轴线直线度误差的定义，建立了在直角坐标采样时该项误差的最小二乘评定法数学模型，该模型的采样数据不需要等角度间隔采样；并用计算机进行仿真分析·结果表明，所建立的数学模型编程简单，计算出的轴线直线度误差值与真实情况的误差小于 10 -6μm·因此由本模型引入的误差可忽略不计·所建立的数学模型为研制形位误差虚拟测量系统提供了理论基础

In this research , a mathematic model is built for coverting internal coordinates into rectangular coordinates and calculating nucleus distances, bond angles and bihedral angles in a molecule.

本研究课题建立了将分子中原子的自然坐标变换成直角坐标，计算任意两个原子的间距，求解任意三个原子核连线的夹角和任意四个原子构成的二面角的数学模型。

This unit content is to be on the image basics that had learned department of planar rectangular coordinates, function, make a student farther understand the intention of function, the linear that exists between the amount in feeling real world concerns, how does experience apply linear function knowledge to solve real problem.

本单元内容是在已经学习了平面直角坐标系、函数的图象基础上，让学生进一步理解函数的内涵，感受现实世界中数量之间存在的线性关系，经历如何应用一次函数知识解决实际新问题。

Secondly, the rectangular coordinates and the sequence number method are used to produce the initial population of IGAE, that is, the initial chromosomes are generated with a string of sequence numbers.

然后，采用直角坐标和序号混合应用的方法产生初始种群，群体中每1个个体表示1条机器人路径，采用IGAE算法对种群进行优化，最终找出最优路径。

The heat transfer in ladle wall is described with non-steady differential difference equations under one-dimension cylindrical coordinates and rectangular coordinates.

其中包壁的传热分别采用圆柱坐标和直角坐标下的一维非稳态导热微分方程及其初始条件和第三类边界条件来描述，用有限差分法求解。

In view of the inclining error in installing to the work-piece in lapping, an analytic method for profile error is presented, new and old rectangular coordinates are established, and error model of work-piece between its actual and ideal curve is deduced through coordinate transform.

针对研磨中工件的安装倾斜误差，提出了导致工件面形误差的分析方法，建立新、原坐标系，应用坐标变换，推导出工件曲线上各点相对理想曲线对应点的误差模型。

Coordinate law is the basiccest methodological.2 example that processing explains knowledge originally analytic exemple 1 in rectangular coordinates plane, 2 acme of △ ABC

坐标法是处理本讲知识的最基本的方法。2 例题分析例1 在直角坐标平面中，△ABC 的2个顶点

To deal with the measurement error induced by the motion compensation error, the phase of the target\'s barycentre is estimated to compensate the phase differences. The measured scatterers\' height and width are wrong because they are not obtained in rectangular coordinates.

建立了在目标与天线电轴间存在较大斜角情况下的干涉式逆合成孔径雷达三维成像模型，并给出了运动补偿的详细步骤，针对因目标运动补偿误差导致的干涉测量误差，提出了利用估计出的目标重心相位对相位差进行补偿的方法。

The calculation model was constructed by equating CWG with rectangular waveguide. The scattering formula was deduced by Integral Equation Method, which was validated by Finite Element Method.

通过将同轴波导等效为窄边是磁壁的矩形波导，建立了金属支撑杆的散射场计算模型，用积分方程法得到了散射场的计算公式，其计算结果与有限元方法仿真结果吻合良好。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。