圆

And the polar angle and the polar radius was represented into AutoCAD polar coordinate, the involute was drawn through the spline linear tool. And then, a section of the involute was intercepted with the diameters of the point circle and the root circle, used it as the tooth face of the spline. The involute tooth thickness was drawn using the diameter of the divided circle and the tooth-form was drawn through rotating, mirroring image and cutting.

根据DIN 3960渐开线花键的坐标值，用EXCEL函数功能计算出不同压力角下渐开线的极角和极半径，表示成AutoCAD极坐标并通过样条线工具绘制出渐开线，再用齿顶圆和齿根圆直径截取一段渐开线作为为花键齿面，并用分度圆直径绘制出渐开线齿剖面，经镜像和裁剪便可绘制出渐开线齿形。

The paper analyzes the change of the exit light from a circular polarizing filter used inversely according to the interference theory of polarized light, measures the spectral transmittance curves with the combining of circular polarizing filter and linar polarizing filter, and summarizes the photographic performance of the circular polarizing filter used inversely.

将圆偏振镜与线偏振镜组合，并使 1 4波片位于线偏振镜之间，测定出线偏振镜和圆偏振镜相对旋转至不同方位时的分光透过率曲线，探讨了入射光为线偏振光时出射光因偏振光的干涉而相应出现的强度和色度变化，并以此为模型，对圆偏振镜反向使用时的摄影性能进行研究和总结。

First introduced highway alignment's definition, the significance, the developing process and the CASIO series calculator in the highway surveying computation application; Using the traverse survey computation's two basic mathematical model (azimuth calculation, coordinate calculation), compile the corresponding procedure to solve echo the wire coordinate computation; With the aid in the mathematical model which three, four and so on leveling's field operations calculate, compiles the corresponding procedure to solve the road elevation survey computation; According to relaxes the circular curve principal point and the detail coordinate computation mathematical model, based on this programs the solution to relax the circular curve coordinate principal point and the detail coordinate computation, then further develops this procedure to use to calculate the circular curve principal point and the detail coordinate computation.

首先介绍了公路线路的定义、意义、发展过程和CASIO 系列计算器在公路测量计算的应用；利用导线测量计算的两种基本数学模型，编写相应的程序以解决附和导线坐标计算；借助于三、四等水准测量的外业计算的数学模型，编写相应的程序以解决公路高程测量的计算；根据缓和圆曲线主点及细部点的坐标计算的数学模型，在此基础上编程解决缓和圆曲线坐标主点及细部点坐标的计算，然后进一步开发此程序用以计算圆曲线主点及细部点的坐标计算。

On this we want to add a Radius property to specify the radius of the Circle and a FillColor property that will allow us to paint the circle. UserControl doesn't expose the Fill property, so you'll have to implement your own.

由于我们要做的是一个圆控件，所以在它上面我们还希望添加一个Radius属性，由它来指定要显示的圆的半径；另外由于用户控件没有Fill属性，我们还需要自己添加一个Fill来对圆进行填充。

Inscribed polygons are used to approximate a circle, and the number of line segments compose the polygon is detemined by the radius and its image of a circle. Calculation of rotation angles between circle and world coordinate systems with normal vector of circles is also discussed. The proposed approach is tested with several real image data, and results are very satisfying.

讨论了利用空间圆所在平面的法向向量计算空间圆局部坐标系相对于物方坐标系的两个旋转角的方法，系统论述了基于物方直接解和直线段最小二乘模板匹配方法进行空间圆匹配与重建的数学模型，并利用实际图像数据进行了重建实验，取得了较好的重建结果。

Then, a Visual C++ program named Sailing Program is written to do following works: to calculate the parameters of rhumb line and great circle line ; to design the great circle line when it is necessary ; to design the composite line when it is necessary; to print tracks of rhumb line and great circle line on Mercator chart.

我们用Visual C++设计的航线设计程序，可以计算出两点之间大圆航线和等角航线的相关参数；如果有必要进行大圆航行的话，程序将计算出大圆航线的航路点；如果需要混合航行的话，程序将进行混合航线设计。

When next day at dawn Pierre saw his neighbour, his first impression of something round was fully confirmed; Platon's whole figure in his French military coat, girt round the waist with cord, in his forage-cap and bast shoes, was roundish, his head was perfectly round, his back, his chest, his shoulders, even his arms, which he always held as though he were about to embrace something, were round in their lines; his friendly smile and big, soft, brown eyes, too, were round.

当第二天清晨，皮埃尔看到自己的邻居时，关于圆的第一印象就完全得到了证实：普拉东身穿法军大衣，腰间系一条绳子，头戴制帽，脚穿草鞋，他的整个身形都是圆的，头完全是圆的，背、胸、肩膀，甚至连他那随时准备抱住什么的双手，都是圆圆的；愉快的笑脸，褐色的温柔的大眼睛，也是圆圆的。

Because of this, circular runout will not detect changes in size.

圆跳动是对被测圆柱的任一截面圆独立检测，圆跳动检测不到尺寸的变化，被测圆柱的任何桶形，腰形或锥形都将被忽略

To meet the demands of a growing customer base, the company has an aggressive capacity build-out plan, including expansion of Fab 1 in Dresden and Fab 7 in Singapore, as well as construction of a new leading-edge 300mm facility in Saratoga County, New York.

为了满足日益壮大的客户群的需求，该公司制定了一项雄心勃勃的产能扩张计划，其中包括德累斯顿第1晶圆厂(Fab 1)和新加坡第7晶圆厂(Fab 7)的扩建，以及在纽约州萨拉托加县新建一家先进的300毫米晶圆厂。

The annulus model captures the key features of rotating convection in full spherical geometry and has been widely employed to study convection, magnetoconvection and dynamos in planetary systems, usually in connection with the small-gap approximation neglecting the effect of azimuthal curvature of the annulus.

圆环模型被广泛用来研究行星系统的对流，磁对流和发电机。通常在这些研究中用到了小间隙的近似，忽略了圆环的环向曲率效应。我们这一工作用数值模拟方法解完全的非线性对流方程组来研究有限间隙的旋转圆环中的非线性对流。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。