查询词典 circle brick

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。

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。

The first one is to generate the circle for each borderline segment of the component by considering the segment length and the prescribed tolerance value. If this is not the case, the borderline segment will be equally divided into halves until the obtained circle satisfies the tolerance value over the whole borderlines of the component. The basic idea of the last two algorithms aims at covering the domain occupied by the component as much as possible. The circle generation is carried out sequentially from salient angle to the sector formed by the salient angle till the uncovered borderline segments of the component. Particularly, the three-step algorithm with gap allows that the generated circles are distributed with gap along the component contour.

二分法利用组件各边长度和设置的容差大小得到该边的候选包络圆，若该圆不满足组件所有边的容差要求，则将该边不断地对分，直至所得到的包络圆满足各边的容差要求；三步划分法和带间隙的改进三步划分法则以组件区域为划分对象，依次对组件多边形凸顶角、凸扇形区和多边形各边剩余线段划分包络圆，且带间隙的改进三步划分法则允许包络圆在组件边界上以适当的间隙分布。

Chinese educational circle, scientific circle and cultural circle are always keeping academic exchange with Harvard.

中国教育界，科学界，文化界一直同哈佛大学保持着学术交流。

Chinese educational circle, scientific circle and cultural circle are all keeping academic activities with Harvard.

中国教育界，科学界，文化界一直同哈佛大学保持着学术交流。

This paper analyze the circle of life to the Stone Forest according to the circle theory of life, and puts forward several suggestions focusing on the trait of life circle of its place and the problem existing at present.

本文应用旅游地生命周期理论，对石林旅游地的生命周期进行简单分析，并针对其所处的生命周期特点及目前存在的问题提出几点发展建议。

The forming way about industry circle have some guide meaning for the present industry policy, industry circle can drive the whole develop in the area, but circle theory and practice have spatial difference. At the last of the thesis stands on the theory, contrast as much as the main questions of industry collect in reality economy, raise objectively the industry collect develop policy after explaining and analyzing as the theory judgment of analyzing industry collect.

研究产业集群的形成路径对我国当前的产业政策具有一定的实践指导意义，产业集群可带动区域的整体发展，而集群理论和集群实践存在差距，文章最后在理论的基础上，尽量对比现实经济中产业集群存在的主要问题，解释分析之余提出针对性的产业集群发展政策，以此作为分析产业集群政策的理论依据。

The article is pushed send the join in circle to be taken, circle advocate look not to come out, guest of a rich does 3 articles one day (as long as wonderful with respect to travel), such pushing send 30 join to have to arrive, one day pushs the measure that sends into circle is limitary, 3 good.

文章推送到圈子里连接就带上了，圈主看不出来的，一个博客一天弄3篇文章，这样推送30个连接就得到了，一天推送进圈子的数量是有限制的，3篇就好。

Xie Ge is qualitative, elliptic or written complaint pouring egg is chief circle, long 4-8(-12) centimeter, wide 1.8-4.5 centimeter, xian Dun knife base level of ministry wedge margin is provided toothed, two sides is not had slippery without wool; Petiole grows 3-7 millimeter, beautiful sheet is born or 2-4 composition gives birth to cyme white, diametical 2.5-3.5 centimeter, have sweet smell, millimeter of peduncular long 6-10, issue a turn; Sepal 5(6), circle, the constellation when fruit is put; Petaline 7-8(-9), broad look pouring egg or circle; Stamen is most, outside annulus filament is accrete into short canal; Ovarian 3 rooms, outside by wool, style is topmost 3 crack.

叶革质，椭圆形或倒卵状长圆形，长4-8(-12)厘米，宽1.8-4.5厘米，先钝刀基部楔边级具锯齿，两面无滑无毛；叶柄长3-7毫米，花单生或2-4组成生聚伞花序白色，直径2.5-3.5厘米，有香气，花梗长6-10毫米，下弯；萼片5(6)，圆形，果时宿存；花瓣7-8(-9)，宽倒卵形或圆形；雄蕊多数，外轮花丝合生成短管；子房3室，外面被毛，花柱顶端3裂。

Objective To study the effect of chitosan in the prevention of fibrous scar formation in the epidural space after laminectomy.

目的 观察选择性脊神经后根切除术椎板切除后硬膜外几种防瘢痕粘连物质的作用并探讨其机制。

On his way to the lift, he looked back to us or was it me his eyes pointing?

当他要进电梯时，他回头看我们（或者说是我，他的眼光？