An ellipse is an asymmetrically shaped closed oval.

任何都对称封闭。

So what ends up happening is that I could almost fill in the ellipses.

最后结果，我几乎可以把这些省略部分填满。

Remember too that the Moon's orbit around the Earth is an ellipse.

同样要记住，月亮绕地球公转轨道。

As the planet orbits the star, it makes a big circle (or ellipse) .

当行星围绕恒星运行时，它会成一大(或)。

It has two points, called foci, which act as a combined center for an ellipse.

它有两点，称为焦点，作为一联合中心。

Well, an ellipse is a shape that resembles a kind of squashed circle.

一种类似于被压扁。

Its foci are two points within the ellipse that describe its shape.

它焦点内描述其两点。

The rough transcript also contains ellipses at three points where Mr. Trump is speaking.

这份粗略文字记录还略去了三处，特朗普均为说话人内容。

For one thing, it's not a perfect circle, it's quite an elongated ellipse.

至少不一标准，而更像一拉长。

Not only that, the Moon orbits the Earth on an ellipse.

不仅如此，月球绕地球公转轨道。

This ellipse has an important property called eccentricity.

有一重要性质，叫做离心率。

Simply put, eccentricity tells how much the ellipse deviates from a perfect circle.

简单地说，离心率表示与正偏离程度。

He discovered the planets orbit the Sun on ellipses, when previously it was thought they orbited in perfect circles.

他发现绕着太阳行星轨道，而以前人们都认为这些轨道完美。

The further apart the foci are, the more squashed the ellipse is.

焦点距离越远，受到挤压就越大。

As Kepler showed, the earth's orbit is an ellipse, with the sun at one of the two focal points.

就像开普勒曾指出，地球轨道，相对以太阳为中心绕起来话有两焦点。

And as if they were cuboidal cells that got stretched tall, their nuclei also are stretched into an ellipse.

由于它们立方体细胞，被拉伸得很高，它们细胞核也被拉伸成。

For any point on the ellipse, the sum of that point's distances to the two foci is the same.

对于上任意一点，该点到两焦点距离之和相同。

Weighing all the possibilities, the computer spits out the potential area of impact in the form of a landing ellipse.

权衡过所有可能性，计算出一可能接触区域，一着陆区。

As eccentricity increases, the ellipse gets flatter and flatter until it just looks like a line.

随着偏心率增加，会变得越来越平，直到它看起来像一条线。

An ellipse with zero eccentricity would just be a regular old circle.

偏心率为零就一普通。