曲线的曲率(curvature)就是针对曲线上某个点的切线方向角对弧长的转动率,通过微分来定义,表明曲线偏离直线的程度。数学上表明曲线在某一点的弯曲程度的数值。 曲率越大,表示曲线的弯曲程度越大。曲率的倒数就是曲率半径。
总曲率 total curvature ; integral curvature
曲率张量 [数] curvature tensor
曲率形式 curvature form
测地曲率 [测] geodesic curvature
数量曲率 scalar curvature
曲率中心 [数] center of curvature ; center of curvation
黎曼曲率张量 Riemann curvature tensor
曲率计 curvemeter ; flexometer
角膜曲率计 keratometer ; ophtalmometer ; Ophthalmometers
That is a mixed sampling algorithm including random sample and curvature sample.
本文结合了随机采样和曲率采样各自的长处,提出了一种混和采样方法。
参考来源 - 海量点云预处理算法研究A novel location method based on the track curvature match is presented.
本文提出了基于线路曲率信息匹配的定位方法。
参考来源 - 基于多传感器信息融合的列车定位方法研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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。
It is locally convex in the sense that it has no loops and the curvature never changes sign.
双曲曲面,即通常所称的负曲率,因为它的表面同时向上和向下弯曲,就像一个马鞍。
The hyperbolic surface, which has so-called negative curvature because its surface curves up and down at the same time, like a saddle.
表面的曲率防止滑塌块完全脱离。
Curvature of the surface prevents slump block from becoming completely detached.
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