向曲线 meaning in Chinese

u curves
v curves

Solution to the longitudinal tooth curve of an internal gear
内剃齿刀齿向曲线的共轭解法
In auto smooth method , we use the curvature and depth analysis to look for " bad point " automatically , and take the latitudinal curve to modify the surface ; referring to the tech of image processing , we import a interactive method to smooth surface based on image smoothing
在自动光顺方法中，利用曲率分析及深度分析自动寻找“坏点”并采用纬向曲线重生成的方法予以修正；结合图像处理的内容，引入了基于图像平滑的交互式曲面光顺方法，取得了满意的效果。
This paper develops a mathematical model for the solution to the longitudinal tooth curve of an internal gear shaver based on the simplified principle for space transmission of a helical gear pair without flank clearance , and proposes a calculating approach of the profile modification of the grinding wheel to be used for grinding the longitudinal tooth curve of the shaver
摘要用简化的空间螺旋齿轮作无侧隙啮合传动的原理，建立了求解内剃齿刀齿向曲线的数学模型，并给出了修磨这种齿向曲线的盘形砂轮的廓形计算方法。