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词汇 evolute
分类 英语词汇 英语翻译词典
释义

evolute /'iːvəl(j)uːt//'ɛvə,lʊt/

英汉-汉英词典
n. 渐屈线
词组 | 习惯用语
您要查找的是不是：
  • volute n. 螺旋形，涡形；涡螺，涡螺壳；涡形花样 adj. 螺旋形的；涡形的
  • evaluate vt. 评价；估价；求…的值 vi. 评价；估价
  • evaluative adj. 可估价的
evolute n. 渐屈线，发包线; adj. 展开的，反卷的;

网络短语:
spherical evolute 球面渐屈线
evolute connection 渐开线引线
plane evolute 平面渐屈线
intermediate evolute 中间渐屈线
mean evolute 中点渐屈线
evolute surface 渐屈面
filar evolute 线渐屈线
Evolute evolute 渐屈线
middle evolute 中渐屈线
英语例句库
  1. Over one hundred years ,they have evoluted on each tracks, pertinaciously continued characteristic spirits and traditions whether the civilization vicissitude and regime subrogation.
    一百多年来,文化变迁,政权更替,它们都顽强地延续和传承着自身特有的精神和底蕴,为福建乃至中国培养了各类大批人才,在福建的教育历史上占有重要的地位。

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中文百科

渐屈线

渐屈线是曲线微分几何中的概念，它是曲在线密切圆圆心的轨迹。等价的描述是一条曲线的渐屈线即是其法线的包络。

渐屈线与渐伸线是一对相对的概念，若曲线A是曲线B的渐屈线，曲线B即为曲线A的渐伸线。每条曲线的渐屈线唯一确定，但却可以有无穷多条渐伸线。

英语百科

Evolute 渐屈线

An ellipse (blue) and its evolute (green). The moving circle is the osculating circle to the ellipse, whose center is the center of curvature. It is also shown how the tangent line to the evolute is normal to the ellipse, i.e., the evolute is the envelope of the normals to the ellipse. The evolute of an ellipse is called an astroid.
The evolute of a curve (in this case, an ellipse) is the envelope of its normals.
An ellipse (red), its evolute (blue) and some parallel curves. Note how the parallel curves touch the evolute where they have cusps
Evoluta de la elipse con a=1 y b=2.

In the differential geometry of curves, the evolute of a curve is the locus of all its centers of curvature. That is to say that when the center of curvature of each point on a curve is drawn, the resultant shape will be the evolute of that curve. The evolute of a circle is therefore a single point at its center.
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