The true shape of Earth is called an oblate spheroid.
地球真正的形状被认为是扁球形。
单词 | Oblate spheroid |
释义 |
Oblate spheroid
原声例句
假如有如果 The true shape of Earth is called an oblate spheroid. 地球真正的形状被认为是扁球形。 Crash Course 天文篇 Vesta is round… ish, what's called an oblate spheroid, flattened a bit like a ball someone's sitting on. 灶神星是圆的… … 扁球体,有点像被人坐着的球。
中文百科
类球面 Spheroid(重定向自扁椭球体)
![]() 类球面是一种二次曲面。二维的椭圆有两个主轴,称为长轴与短轴。在三维空间里,将一个椭圆绕着其任何一主轴旋转,则可得到一个类球面。 用另外一种方法来描述,类球面是一种椭球面。采用直角坐标 其中,
英语百科
Spheroid 类球面(重定向自Oblate spheroid)
![]() ![]() ![]() A spheroid, or ellipsoid of revolution, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters. If the ellipse is rotated about its major axis, the result is a prolate (elongated) spheroid, like an American football or rugby ball. If the ellipse is rotated about its minor axis, the result is an oblate (flattened) spheroid, like a lentil. If the generating ellipse is a circle, the result is a sphere. A spheroid has circular symmetry. |
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