It is to get the rocket going fast enough to escape Earth's gravity.

是为了让火箭的速度足够快，足以逃离地球的引力。

The earth's gravity slows the moon's rotation, matching it to the speed of its orbit.

地球引力减缓了月球的自转速度，使之与其轨道的速度相匹配。

Escape velocity is simply the speed of an object that's shot out of a cannon the minimum initial speed so that the object could later escape Earth's gravity on its own.

逃逸速度就是一个物体的速度，比如说，从加农炮中射出的最小初始速度，这样这个物体以后就可以自己脱离地球的引力。

This is the fixed part of the Earth's gravity.

这是地球引力的固定部分。

And if the earth's gravity seems strong, imagine the pull of the sun.

姑且地球的引力已经够大的了，设想一下太阳的引力该有多大。

Lifting heavy spacecraft and fuel out of the Earth's gravity is expensive.

将沉重的航天器和燃料送出地球引力以外费用昂贵。

Though an ion engine could never lift a spacecraft out of Earth's gravity well.

尽管离子发动机不能使航天飞机很好地摆脱地球引力。

Scientists have unveiled the most accurate map ever produced of the Earth's gravity.

科学家们发布了一副最为精确的地球重力地图。

A problem to find reasons from yourself, don't blame a constipation earth's gravity.

出问题先从自己身上找原因，别一便秘就怪地球没引力。

As you go up a mountain, you have to overcome the earth's gravity which pulls you down.

上山时你必须克服把你往下拉的地球引力。

We do not realize how much we depend on the earth's gravity until we are deprived of it.

我们只是在失去地球引力时，才意识到对它的依赖程度。

In the Earth's gravity, weight and is equivalent in quality, but different metric units.

在地球引力下，重量和质量是等值的，但是度量单位不同。

The Earth's gravity field change caused by the inner core's super rotation is investigated.

本文研究由内核超速旋转引起的地球重力场的变化。

Out of the question from yourself to find the reason, don't blame a constipation earth's gravity.

出问题从自己身上找原因，别一便秘就怪地球没引力。

When you pick up a book or a ball, you are using more force than the force of the earth's gravity.

你捡起一本书或一个球时，你使用的力，比地球的引力大。

The recurrence relations of the coefficients of the Earth's gravity have been given in this paper.

本文也给出了地球引力系数递推关系式。

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

我们惊奇地看着，随着地球的引力增加，宇宙飞船的外层燃烧起火。

Face in space follows a long tradition of spacecraft carrying personal touches out of Earth's gravity well.

“脸谱上太空”活动延续了NASA使用航天器携带私人物品脱离地心引力的优良传统。

Described as an enormous round plate, it spins slowly in space to imitate the pull of the earth's gravity.

太空站像一个巨大的圆盘，在太空中缓缓地旋转，以仿照出地球重心的引力。

Described as an enormous round plate, it spins slowly in space to imitate the pull of the earth's gravity.

像一个巨大的圆盘，它在太空中缓缓地旋转，以仿照地球重心的引力。

The structure would not only house thousands of families, but its movements would simulate Earth's gravity.

这座城市不仅可以容纳上千户家庭，而且可以模拟地球上的重力环境。

Data resolution has an important effect on modeling the earth's gravity field and the accuracy of the geoid.

数据分辨率是影响地球重力场建模和大地水准面精度的重要因素。

Our current Moon did not emerge from the Earth, but was captured by Earth's gravity field during this tumultuous time.

我们如今的月亮不是来自于地球，而是在这个混乱的期间被地球的重力场捕获的。

And conversely, Earth's gravity has slowed the moon's rotation so that it always presents the same face to its parent planet.

反过来，地球的引力减慢了月球的自转速度，结果月球总是将其相同的一面展现给地球。

It is found that the Earth's gravity causes atomic vibrations to occur faster at the top of a tall tower than they do at the bottom.

已经发现，在一个高塔的顶部，地球的万有引力使原子振动得比在高塔底部要快。

The force of Earth's gravity is so great that if the asteroid goes through the hole its path could be 'tweaked' - sending it straight towards us.

在强大引力的作用之下，“穿孔”成功的彗星轨道发生变形，气候将不偏不歪的朝地球直接扑来。