曲率

Some geometric data of ellipse in hyperbolic space are considered, such as set inclusion, arc length, geodesic curvature, curvature, area and total curvature.

摘要在双曲空间中，考察椭圆的包含关系，对弧长元素、测地曲率、曲率、面积及全曲率等几何量做出细致考察。

This paper reviews whether forward movement of the posterior corneal surface occurred, changes in posterior corneal power and curvature, changes in posterior corneal astigmatism and tilt, changes in posterior corneal asphericity and BFS after the surgery.

本文综述了准分子激光屈光性手术后角膜后表面是否发生前移改变、角膜后表面屈光力、曲率、散光度、轴度、非球面特性以及最适球面等是否发生改变的研究进展。

Some geometric data of ellipse in hyperbolic space are considered,such as set inclusion,arc length,geodesic curvature,curvature,area and total curvature .

在双曲空间中，考察椭圆的包含关系，对弧长元素、测地曲率、曲率、面积及全曲率等几何量做出细致考察。

2The ratio of the change in the angle of a tangent that moves over a given arc to the length of the arc.

曲率：切线通过给定弧线的角度变化与弧线长度之间的比率

Linear model ; measure ; perturbation ; curvature / local influence analysis

线性模型；度量；扰动；曲率／局部影响分析

In this paper a framework is built for differential quantity calculation on spatial curves of point cloud and a new matching method for given point curves is proposed.

建立了点云几何分析的相关理论框架，即定义和计算点云潜在曲线的几何微分量，包括Frenet标架、曲率、挠率等；在此基础上提出一种新的点云空间曲线匹配方法。

On the basis of Prof. S. Knothe's expression for arbitrary point in subsidence trough, the equations are derived with probabilistic integration for calculation of slope, curvature, horizontal movement, horizontal deformation, torsion and form deformation at arbitrary direction and point in subsidence trough.

本文在克诺特建立的地表下沉盆地任意点表达式的基础上，导出用概率积分法计算下沉盆地任意点任意方向的倾斜、曲率、水平移动、水平变形、扭曲和形变公式，并得出主剖面计算公式是任意点任意方向移动与变形计算公式的特例。

Theory; the spatial meshing theory includes comparative motion, comparative differential and conjugative curved surface; and the application of meshing theory includes gear drive and worm drive. The spatial meshing theory is the main part of the course.

课程的重点讲解内容有曲线的参数方程、切线、法面、弧长、曲率、空间曲线的基本公式、挠率及平面曲线的基本公式等；曲面第一和第二基本公式，法曲率、主方向和主曲率、欧拉公式、短程挠率、欧拉公式和贝特朗公式推广、相对法曲率和相对短程挠率等；刚体的绝对和相对运动速度、相对微分和绝对微分、相对速度和相对微分、轨迹曲面的法曲率和短程挠率等；空间共轭曲面的啮合条件、诱导法曲率、两类界限点、等距共轭曲面、空间啮合的二次接触原理等；蜗杆传动的数学模型建立及啮合特性分析方法等。

In the modeling environment of UG, sewed、modified and entity romanced of 3D blade body were carried out. The smoothness、the curvanture、the strength and the number points on model face of blade were analyzed.

并在UG的建模环境中进行了三维叶片片体的缝合、修改和实体渲染以及对叶片的光滑度、曲率、强度、型面点数等的分析。

In the mode li ng environment of UG, sewed 、 modified and entity romanced of 3D blade body were carried out. The smoothness 、 the curvanture 、 the strength and the number points on model face of blade were analyzed.

并在UG的建模环境中进行了三维叶片片体的缝合、修改和实体渲染以及对叶片的光滑度、曲率、强度、型面点数等的分析。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。