Both of the two function are convex curvature images, which shows that with rainfall increasing, the amounts of soil erosion resulting from per unit rainfall increases step by step.
这两种函数特征都是一曲率凹向上的图象，它表明随着降雨量的增大，单位降雨量所引起的土壤侵蚀量在逐步增大。
It is locally convex in the sense that it has no loops and the curvature never changes sign.
它的局部是凸的，因为它没有环路，且曲率永远不会改变符号。
The special meshing of convex and concave teeth profile makes the relative radius of curvature of the contacting point longer.
独特的凸凹啮合齿廓，使两齿轮在接触点处的综合曲率半径较大。
And give out the unified optical path, Newton's ring radius and convex lens curvature radius measurement formula of non - contact type, simple cutting type and tangent type Newton's Rring.
并给出了非接触式、浅近切割式及相切式牛顿环的统一的光程差，牛顿环半径及凸透镜曲率半径测量公式。
The inferior and lateral convex border of the stomach is the greater curvature.
胃的下方及侧面凸缘是胃大弯。
The hinge has a central portion (50) with a convex outer surface, with the lid closed and as viewed in side elevation, that blends with a smooth curvature into outer surfaces of the lid and the base.
所述铰链具有中心部分（50），在盖闭合时并且从侧面正视图观 察时中心部分（50）具有凸的外表面，所述凸的外表面以平滑曲率融入所述盖和所述基体的外表面。
In this paper we investigate the convex set in a plane of constant curvature.
本文研究常曲率平面上的凸集，研究常曲平面上的凸集方法。
The increasing Rotation number weakens curvature effect on convex surfaces, while strengthens curvature effect on concave surfaces.
而凹表面上曲率的作用随着旋转数的增大而逐渐增强。
This paper presents an approach to machine steam turbine blades in 5-axis NC. By means of using a disc cutter with a concave end, curvature fitting is used to machine the convex and concave surface.
提出了一种汽轮机叶片五轴数控加工的实用方法，对于叶背和叶盆采用中凹盘形铣刀，基于密切曲率法给出优化刀位轨迹的计算方法；
This paper presents an approach to machine steam turbine blades in 5-axis NC. By means of using a disc cutter with a concave end, curvature fitting is used to machine the convex and concave surface.
提出了一种汽轮机叶片五轴数控加工的实用方法，对于叶背和叶盆采用中凹盘形铣刀，基于密切曲率法给出优化刀位轨迹的计算方法；
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