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单词 ellipsoidal
释义

ellipsoidal /ˌelip'sɔidəl/

英汉-汉英词典
adj. 椭圆体的
词组 | 习惯用语
ellipsoidal head 椭圆形封头
英语例句库
  1. This spinning area surrounding the event horizon is called the ergosphere and has an ellipsoidal shape.
    这活动视界周围旋转的区域是所谓的能层而具有椭圆形。

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原声例句
China Daily 最新合辑

The material, which includes spherical, ellipsoidal, and dumbbell-shaped glass beads as well as colloidal items with a porous structure and sputtering material in fluid form, have also been found.

此外,还发现了球状、椭球状、哑铃状等形状的玻璃珠,以及气孔构造的胶结质和流体形态的溅射物。

中文百科

椭球 Ellipsoid

(重定向自Ellipsoidal)
椭球

椭球是一种二次曲面,是椭圆在三维空间的推广。椭球在xyz-笛卡儿坐标系中的方程是:

其中ab是赤道半径(沿着xy轴),c是极半径(沿着z轴)。这三个数都是固定的正实数,决定了椭球的形状。

如果三个半径都是相等的,那幺就是一个球;如果有两个半径是相等的,则是一个类球面。

点(a,0,0)、(0,b,0)和(0,0,c)都在曲面上。从原点到这三个点的线段,称为椭球的半主轴。它们与椭圆的半长轴和半短轴相对应。

英语百科

Ellipsoid 椭球

(重定向自Ellipsoidal)
Tri-axial ellipsoid with distinct semi-axes a, b and c
Ellipsoids of revolution (spheroid) with a pair of equal semi-axes (a) and a distinct third semi-axis (c) which is an axis of symmetry. The ellipsoid is  prolate (top) or oblate (bottom) as c is greater than or less than a.
Circular sections of an ellipsoid

An ellipsoid is a closed quadric surface that is a three-dimensional analogue of an ellipse. The standard equation of an ellipsoid centered at the origin of a Cartesian coordinate system and aligned with the axes is

The points (a,0,0), (0,b,0) and (0,0,c) lie on the surface and the line segments from the origin to these points are called the semi-principal axes of length a, b, c. They correspond to the semi-major axis and semi-minor axis of the appropriate ellipses.

近义、反义、联想词
近义词
adj.
rounded

反义词
n.
angular, angulate

联想词
spherical球的;cylindrical圆柱形的;conical圆锥形的;convex凸面的;elongated细长的;concave凹的,凹面的;hexagonal六角形的;triangular三角形的;rectangular矩形的;annular环形的,有环纹的;reflector反射镜;
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更新时间:2025/6/23 6:26:57