For a long time the earth's atmosphere did not contain much oxygen.

Than the pressure of the Earth's atmosphere.

相对于地球大气的压力。

A scheme of realizing the reference state of the earth's atmosphere

地球大气参考状态实现的一个方案

The Earth's atmosphere is all around us.

地球上的大气围绕着我们。

She studies the composition of the earth's atmosphere.

她研究地球大气的构成。

Any region in space outside the Earth's atmosphere.

在空间中地球大气层以外的任何区域。

Studies processes in earth's atmosphere that cause weather conditions.

研究地球空气中影响天气的因素。

As a result, the study estimates that somewhere between 2% and 16% of the oxidizing, or cleaning that happens naturally in the Earth's atmosphere, is done by lightning.

因此，研究估计，地球大气中自然发生的氧化或清洁有2%到16%是由闪电完成的。

The net catches the junk and then pulls it into the earth's atmosphere to burn up.

这个网捕捉到垃圾,然后把它拉到地球大气层中燃烧。

Each tool must be built to fall safely into the earth's atmosphere after that time.

每一个工具都必须在那之后安全地落入地球大气层。

The project would give scientists new insights into what is happening to the earth's atmosphere

该项目将使科学家对地球大气层的状况有更新的深入了解。

The force of friction slows the spacecraft down as it re-enters the earth's atmosphere.

航天飞机重返地球大气层时因有摩擦力而减慢速度。

The child had laid her head on a stone and fallen asleep.

孩子早已把头枕在一块石头上睡着了。

But this time, both he and his girlfriend had fallen asleep,

但这一次，他和女朋友都睡着了，

MEG has fallen asleep towards the end of the flight.

飞行快结束时，梅格已经睡着了。

It's impossible. he's fallen asleep so quickly.

不会吧。这么快就睡着了。

I have already fallen asleep when you came.

你来的时候我已经睡了。

Mark: Oh, yeah. I must have fallen asleep.

马克：哦，好像是。那我刚一定是睡着了。

I'm sorry. I must have fallen asleep.

对不起我一定是不小心睡着了

One of the actors appeared to have actually fallen asleep...

有个演员看上去像睡着了一样…

The boy hasn't fallen asleep since his father came back.

这个男孩从他父亲回来就没有睡着。