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ellipse

美[ɪ'lɪps] 英[ɪ'lɪps]

n. 椭圆；椭圆形

近义词：oval，

Noun

a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it;
"the sums of the distances from the foci to any point on an ellipse is constant"

用作名词(n.)

A circle is an ellipse with zero eccentricity.圆形是零离线率的椭圆。
An arc is a portion of an ellipse.弧线是椭圆的一部分。
Newton proved mathematically that the path of a planet must be an ellipse.牛顿用数学证明了行星运行的轨道必定是椭圆形的。

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