So, they escape Earth's gravity and drift off into space.

因此，它们逃离球引力，漂向太空。

Leaving the moon's gravity was not as painful as leaving the earth's.

摆脱月球引力不想摆脱球引力那样痛苦。

If we mess up the earth gravity assist, we die.

如果球引力助推搞砸了，我们会死。

A spacecraft and basically everything else on Earth is held down by Earth's gravity.

球上几乎所有的物体都球引力的压制。

That is a place where the gravity of the sun, moon and Earth are balanced.

那是一个太阳、月球和球引力平衡的方。

The Moon continues on its gravitational dance with Earth, swinging around its orbit.

月球继续与球引力共舞，绕其轨道旋。

Fast enough to escape earth's gravity and begin the shuttle era.

使其能以足够快的速度逃离球引力，从此开始航天飞机时代。

The Earth's gravity acts on the moon and stretches it out into a kind of rugby ball shape.

月球在球引力的用下变成类似橄榄球的形状。

Others thought the moon formed elsewhere in the solar system and was captured by Earth's gravity.

其他人认为月球形成于太阳系的其他方，并被球引力捕获。

But from the moment it was born, our companion felt the tug of gravity.

但是自从它诞生之日起就一直球引力的影响。

We learn at school that we're constantly pulled down by Earth's gravity and that's why things fall.

我们在学校里学过，我们不断被球引力下，这就是物体下落的原因。

We watched, amazed as fire broke out on the outside of the spaceship as the earth's gravity increased.

我们惊奇看着，宇宙飞船的外层燃烧起火，因为球引力在逐渐增加。

Elsewhere study finds that spaceflight may pose health risks to anyone spending time beyond earth's gravity.

其他方的研究发现，太空飞行可能会给任何在球引力之外度过时间的人带来健康风险。

This is a point where the gravitational forces of the sun and Earth balance each other.

太阳和球的引力在这里达平衡。

George Clooney and Sandra Bullock's latest offering, the 3D odyssey 'Gravity' which is showing out of competition.

乔治·克鲁尼和桑德·布洛克的最新3D奥德赛电影《球引力》，这部电影在评比中脱颖而出。

The gravity of earth is what makes flames rise and look like they do.

球的引力使火焰升起，呈现出我们看的样子。

We take on an estimated 40,000 tonnes of space dust that the earth's gravity pulls in like a giant vacuum.

据估计，球引力像一个巨大的真空吸尘器一样吸进了4万吨太空尘埃。

And we can use that information to figure out the magnitude of this orange vector right over here.

我们可以用以上的这些资讯求这个橘色的向量的量值记住，这个橘色的向量是球引力垂直於斜面表面的分力。

Say you increase the size of Earth, so Earth's gravitational constant increases.

假设你增加了球的大小，球的引力常数就会增加。

And remember, this orange vector is the component of the force of gravity that is perpendicular to the plane.

记住，这个橘色的向量是球引力垂直於斜面表面的分力然後这里也会有一个分力会平行於斜面表面。