查询词典 radius angle

The radius vector error and polar angle error are used to describe the scroll involute error.

并采用极角误差以及向径误差来描述线型误差。

Either of two coordinates , the radius vector or the polar angle , that together specify the position of a point in a plane .

极坐标：两个坐标中的任一个，向量径或极角，共同用以确定平面中一点的位置

Feature points ; geometric gravity center ; polar radius ; argument angle

特征点；重心；极径；幅角

Its 10 grooves are well described by Archimedes'(287 to 212 B.C.) spirals (5, 6) of the form r =*(in polar coordinates, radius r, angle , and constant ).

其10槽有很好的描述了阿基米德( 287至公元前212 ) spirals ( 5 ， 6 )的形式r =*(极坐标，半径r ，角度和常数)。

With a camera (640pixel×480pixel and 0.097 3mm/pixel as resolution of target),50 samples are taken at each distance of 1m,9m and 18m.The standard deviation is 0.009 37mm,0.034 2mm and 0.086 0mm for polar radius,0.843′,1.26′ and 1.57′ for angle,respectively.

采用640pixel×480pixel摄像机(光靶分辨率为0.0973mm/pixel)，在1m、9m和18m处分别摄取50幅图像，测量结果的极径标准偏差分别为0.00937mm、0.0342mm和0.0860mm，极角标准偏差分别为0.843′、1.26′和1.57′。

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 Docter is able to keep any image blur outside the 75% radius, beyond that, the star image is degrading more rapidly. This is an excellent performance for a wide angle 8x42 binocular, and for sure the investment into sophisticated quadruplet objectives is paying off here.

Docter能将图片模糊控制在半径75%以外，越过后，星像迅速变差，这在8x42的广角望远镜里表现极其优秀，可以确信那复杂的4组结构物镜的投资就在这里体现了。

This paper presents a new method to determine the minimum basic circle radius of a plate cam with a roller follower by the allowable pressure angle, and gives the feasible region of geometrical parameters of the cam mechanism.

介绍按许用压力角确定滚子从动件盘形凸轮最小基圆半径的一种新的解析方法。同时给出凸轮机构几何参数的可行域

In this paper, the pressure angle and minimal radius of curvature of cam mechanism with swinging roller follower are discussed in details.

本文对摆动从动杆盘状凸轮机构的最大压力角和最小曲率半径问题进行了详细的讨论。

Methods:Fifty paired embalmed cadaveric humeri (twenty-five pairs:fourteen from male donors and eleven from female donors) were scanned in medial-lateral and anterior-posterior position according to the humeral retroversion by CT. Images of the humeri in the transverse planes at the lowest border of neck,20mm and 40mm distal of LBN(LBN-20、LBN-40), isthmus, head-neck anterior-posteriorwere obtained. Sixty-one extracortical and intracortical parameters were measured exactly by image analytic computer software that included offset, head position, head-shaft angle, head to tuberosity height, head thickness, curvature radius, articular surface arc, neck diameter, isthmus position, proximal and distal border of isthmus, maximum coronal and sagittal diameter of medullary canal and thickness of cortical bone in four planes, including LBN, LBN-20,LBN-40 and isthmus.

50根成对防腐肱骨(男14对，女11对)按肱骨头扭转角置于冠状位和矢状位，行肱骨全长，头颈矢状面，解剖颈下缘及其下20mm、40mm，髓腔狭窄部四平面CT扫描，由CT软件测量冠、矢状位髓腔内外参数共61项，包括头心—干轴距，头位置，头干角，头—结节高度差，头厚度，头半径，关节面张角，解剖颈直径，髓腔狭窄部位置，解剖颈下缘及其下20mm、40mm和狭窄部四个平面髓腔的最大冠、矢状径，皮质骨厚度等。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。