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Based on the propagation and transformation law of Wigner distribution function through a general axially nonsymmetrical optical system,investigated is the transform relationship of WDF between the input and the output planes of a pair of cylindrical lenses system which is used widely in optical signal processing .

基于维格纳分布函数在一般非轴对称系统的传播和变换规律,讨论了在光学信息处理系统中常用的双柱透镜系统输入和输出面WDF之间的变换关系,在直角坐标中给出了联系该系统相空间坐标的维格纳分布函数的坐标变换关系式和等价的矩阵表示。

In the course of program designing, OLE mechanism and Graph for Windows have been used to generate specific geological triangular chart from computer instead of manual work in before. By using PowerBuilder 7, inquiry through a clue of combination of conditions including structural tree, strati graphic tree, well number tree and sample number tree is realized, which meets the thinking way of geologists.

在程序设计方面,针对岩石名称分类复杂、量化定名烦琐的现状,采用OLE机制和Graph for windows图形工具,对岩石含量数据进行相对数值转换,完成了平面上呈三角形排列的三个直角坐标系统的叠加,避免了人工绘制地质三角图随意性大、精确度低的问题,极大地提高了工作效率。

The simulation results by auto-adaptive Cartesian grid approach and STAR-CD were compared and consistencies were shown.

自适应直角坐标网格方法在本文的两个算例中得到了同STAR-CD一致的结果。

In order to deal with different kinds of building shapes,body-fitted quadrilateral grids are arranged in the inner domain and rectangle girds in the outer domain.

为适应不同建筑体型的需要,本文提出在内层区域布置贴体的任意四边形网格,而在外围区域布置直角坐标矩形网格的分层网格离散模式。

We also find out that the results measured by a tape are better than that measured by a walking measuring wheel. At last, if extra geometric constraints are given, the accuracy can be significantly increased.

最后,本研究亦发现不管在平地及斜坡上,在增加距离的观测量下,利用卷尺配合现行直角坐标法,可大幅提升绘制交通事故现场图的正确性。

Equations representing boundary conditions of faces of intake port、 valve and valve motion as well as opened system including import and export are given.

运用网格生成的微方法以及分块技术,构造了螺旋进气道—进气门—气缸在笛卡尔直角坐标系下的三维伪极坐标网格系统和三维直角坐标网格系统。

In addition, this method is used in the motion control study of spinning machine tool, and achieve good control effect

机床的工作台可视为直角坐标型的机器人,这类机器人是近似线性系统,可以采用比较复杂的迭代学习控制方法,因此,本文提出了弹性移动关节机器人的混合PID迭代学习控制律,证明了该方法的收敛性,并将这种方法应用于旋压机床的学习运动控制,达到了良好的控制效果。

Setting-out is done in different sections combing with actual engineering condition,electronic total station and laser theodolite combining with rectangular coordinate method,CAD technology,and the effect is obtained quickly and exactly.

结合实际情况,采用电子全站仪,激光经纬仪结合直角坐标法、CAD技术等测量方法针对不同部位进行测量放线,达到了快速精确地完成测量放线的目的。

And this paper researches projection ways of coordinate such as the Mercator projection, Lambert projection and linear projection to achieve the conversion of level rectangular coordinate by latitude coordinate and geography.

研究横轴墨卡托投影、兰勃特投影以及线性投影等其它坐标投影方式,实现地理经纬度坐标到平面直角坐标的转换,支持多比例尺地图。

The finite element method has found wide application in geo-science.

有限单元技术在地球科学中得到日益广泛的应用,但目前直角坐标下的有限元分析程序处理地球科学问题极为不便。

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I didn't watch TV last night, because it .

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Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

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