使用plot命令，gnuplot可以在直角二维坐标系中进行操作。
With the plot command, gnuplot can operate in rectangular or polar coordinates.
气相控制方程为欧拉坐标系中的二维轴对称n - S方程，求解方法为隐式LU -SGS方法。
Gas governing equations are two dimensional axisymmetric N-S equations in Eulerian coordinates, which were solved by implicit LU-SGS method.
采用该算法生成的直角坐标系下网格坐标及一维、二维和三维网格图型不仅精确，而且快速有效。
These grid orthogonal coordinates and one, two and three dimensional mesh patterns, which are produced by using the algorithm, are not only accurate, but also being generated efficiently.
该方法在比赛区域建立二维平面坐标系，将整个航程划分若干区段，通过坐标轴旋转和平移得到各区段的虚拟坐标系。
A two-dimensional model for sailing was used to divide the voyage into several sections and obtain a corresponding coordinate system by a circumvolving and shifting operation.
在此基础上建立了正交曲线贴体坐标系下的平面二维全沙数学模型。
A plane 2-d full load mathematical model is established under the body-fitted coordinate system based on staggered grid.
基于对轧件与轧辊截交线的分析，提出了在二维直角坐标系中确定轧件咬入接触点的方法。
Based on analyzing the intersection curve between the rolled-piece and roll, the method of determining the nip point is put forward.
根据二维转台的结构特点，建立了它的空间坐标系。
Space coordinate system is built according to the structural features of the high-accuracy 2d turntable.
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。
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.
采用二维轴对称坐标系和按规定速度运动的任意四边形网格单元，燃烧室可具有较复杂的几何形状。
Two-dimensional axisymmetrical coordinates and mesh cells with the shape of an arbitrary quadrilateral are employed, which can move with a pre-scribed velocity.
利用球坐标系中的二维潮波方程组，以T/P卫星沿迹分析结果为开边界条件的边值法，计算了黄海中的一个四边形区域。
Under the spherical coordinate, the boundary value method using the along track estimates of(T/P) satellite as open boundary conditions is applied to establish tide models in the Yellow Sea.
提出了一种基于虚拟左、右像片像空间坐标系的二维直接定位法，可快速提取工业测量系统两台经纬仪之间的相对定位元素并完成相对定位。
The relative location element between two theodolites in the industrial measuring system (IMS) can be picked up rapidly and the relative location can be completed by the method.
在笛氏齐次坐标的基础上，采用齐次向量的方法，建立二维射影坐标系。
It is shown that the 2_dimensional projective coordinate system can be constructed by homogeneous vector on the basis of the Descartes homogeneous coordinates.
实物坐标系经过一系列变换通过三维显示的二维投影面与显示坐标系统一。
World coordinate that had undergone some transform such as translation, and rotation was unified with display coordinate through 2D projection plane of 3D display coordinate.
现在我们已经有了照相机，但是还要将3D空间影射到把三维空间坐标系转换到二维屏幕坐标系的“视口”上。
Now that we have the camera, we must map 3D space to a 'viewport' which handles the translation of coordinates from 3D space to the 2D screen.
现在我们已经有了照相机，但是还要将3D空间影射到把三维空间坐标系转换到二维屏幕坐标系的“视口”上。
Now that we have the camera, we must map 3D space to a 'viewport' which handles the translation of coordinates from 3D space to the 2D screen.
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