Now, that's just outside, at sea level.

那就在外面，在海平面上。

We're literally at sea level here.

我们这儿正好在海平面的高度。

760 miles per hour is about the speed of sound at sea level.

每小时760英里相当于海平面上的声速。

The pressure of air at sea level is about 760 millimeters of mercury.

海平面上的空气压力大约是 760 毫米汞柱。

New York City is at sea level, so we're talking about real oxygen.

纽约市在海平面上，所以我们谈论的是真正的氧气。

The air pressure at sea level is nearly 15 pounds for each square inch.

海平面上的大气压力每平方英寸大约有15磅。

Bangladesh is directly affected by the phenomena occurring in the Himalayas and at sea level.

孟加拉直接受到喜马拉雅山的变化和海面上升的影响。

Up there, the air is thin— with 40 percent less oxygen than at sea level.

那儿，空气稀薄——氧含量比水平面低40%。

Alcohol affects people twice as much at this high altitude than it does at sea level.

在这个高海拔地区，酒精对人们的影响是海平面上的两倍。

At an altitude of 8,848 meters, barometric pressure is approximately 33% of what it is at sea level.

在 8848 米的海拔高度上，大气压只有海平面高度的三分之一。

And it also allows us to get above the thick air that you have at sea level.

它还能让我们得到海平面上的厚厚的空气。

When an object travels faster than 760 miles per hours at sea level it`s said to be what?

当一个物体在海平面上以每小时760英里的速度传播时，它被称为什么？

If you're standing on the surface at sea level, then you're currently experiencing about 1 G of force.

如果你站在海平面的地面上，那么你现在正承受着大约 1G 的力。

A change in air pressure that drastic is equivalent to being at sea level and dropping down 2000 meters instantly.

气压的变化如此剧烈，相当于本来在海平面突然下潜 2000 米。

Here at sea level, the most northerly trees in Europe are moving upslope, gobbling up the tundra as they go.

在这里的海平面上，欧洲最北端的树木正在往上挪，边走边吞噬着苔原。

Today the action's down at sea level.

今天行动在海平面以下。

On dry land, at sea level, the pressure or weight of all the air above us is known as an atmosphere.

在陆地上，在海平面上，我们上方所有空气的压力或重量被称为大气。

And at that altitude, the air is 60 times less dense than at sea level.

在这个高度，空气的密度比海平面低 60 倍。

For reference, Earth's atmosphere at sea level contains 100 billion billion molecules per cubic centimeter.

作为参考，地球海平面大气每立方厘米含有 1000 亿个分子。

Let’s say this force is about 800 Newtons when you’re standing at sea level.

假设当您站在海平面时，这个力约为 800 牛顿。