Io, for example, has an elliptical orbit.

例如木卫一 ，有一个椭圆形轨道。

Both are on very elliptical orbits.

它们的公转轨道都呈椭圆形。

Goes up, delivers the capsule into an elliptical orbit.

发射升空之后 推送太空舱进入椭圆形轨道。

So, it means to move from an elliptical orbit to a parabolic orbit?

那么，就意味着需要从椭圆形轨道转到抛物线形轨道？

The problem is when the capsule moves from an elliptical orbit to a parabolic orbit.

棘手的是，如何能让太空舱从椭圆形轨道转到抛物线形轨道。

The moon's elliptical orbit makes it appear to regularly change size in the night sky.

月球的椭圆轨道使它在夜空中看上去有规律地改变大小。

Planets with highly elliptical orbits are more likely to run into trouble as compared to a circular counterpart.

与圆形轨道的行星相比，高度椭圆形轨道的行星更容易遇到麻烦。

Asteroids orbit the sun in elliptical orbits, but additionally, they also sometimes rotate, tumbling half hazardly through space.

小行星以椭圆形轨道围绕太阳运行，但除此之外，它们有时也会旋转，在太空中危险地翻滚一半。

Because it was close to Earth in its elliptical orbit, that made it appear bigger earning the name super moon.

因为它在椭圆轨道上离地球很近，这使得它看起来更大，因此被称为超级月亮。

It's the gravitational attraction between the sun and the planets that sustains the planets in elliptical orbits around the sun.

那是太阳和行星之间的万有引力。维持着众行星围绕在太阳周围的椭圆轨道上。

It has the most elliptical orbit of any planet, ranging from 46 to nearly 70 million kilometers from the Sun.

在所有行星中，它的轨道是最扁的，近日点有4600万千米，远日点有7000万千米。

This is due to its insanely elliptical orbit.

这是由于其疯狂的椭圆轨道。

The moon has an elliptical orbit.

月球有一个椭圆轨道。

That, together with the Earth's velocity, makes the planet's orbit elliptical.

这与地球的速度一起，使地球的轨道呈椭圆形。

Natural comets are space-going balls of rock and ice in highly elliptical orbits.

天然彗星是在高度椭圆轨道上运行的由岩石和冰组成的太空球。

The Moon travels around our planet in an elliptical orbit, or an elongated circle.

月球以椭圆轨道或拉长的圆圈围绕我们的星球运行。

The probe, designed to study the sun, was in an elliptical orbit around the sun.

该探测器旨在研究太阳， 位于围绕太阳的椭圆轨道上。

Mercury's elliptical orbit, together with the 2: 3 spin to orbit ratio, make for a very, very weird day on Mercury.

水星的椭圆轨道，加上2: 3的自转公转比，使得水星上的一天非常非常奇特。

It also marks the closest distance any elliptical orbit of any kind of  matter can get.

它还标志着任何一种物质的任何椭圆轨道所能达到的最近距离。

The reason is because it was at Perigee at the closest point of its elliptical orbit around the earth.

原因是因为它位于近地点，是其绕地球椭圆轨道的最近点。