This is often seen as a trough or cold front, also known as a cool change, shifting the direction of the wind, altering the course of the fire and broadening the fire front.

这个常见的低气压或者叫冷峰，也众人所知的降温，降温改变了风向，改变了大火行进路线，并且拓宽了火线。

There are many signs that can help you. For example, in fair weather the air pressure is generally high, the air is still and often full of dust, and far away objects may look vague.

许都能帮到你。例如，晴天的气压通常很高，空气平静又经常带有尘土，远处的物体看起来有些模糊。

Blame the bomb cyclone. Yep, that's right. Bomb cyclone is actually a real weather term.

这都炸弹低气压所致。的, 这正确的。这实际上一种真正的气象术语。

The weather is constantly in flux. A low pressure system allows moist air to rise, cool and form rain clouds.

天气变幻无常的。低气压系统使潮湿的空气上升，冷凝，形成降雨云。

We are dealing with a pressure differential of around 1,100 atmospheres.

而我们要经历大约1100个大气压的压差。

There, the pressure is so low that people can't survive without a special protective suit...

那里的气压很低，人们没有特殊的防护服就无法生存下去。

Like these air pistons he uses to launch food.

比如他用来发射食物的这些气压活塞。

It occurs when a storm's air pressure drops 24 millibars in 24 hours and generally speaking the lower the pressure, the stronger the storm.

这种现象在风暴的气压于24小时内下降24百帕时发生，通常来说气压越低，风暴就越强。

But they face many physiological problems – problems relating to how the human body functions, such as the bends – a painful medical condition caused by returning too quickly to atmospheric pressure – the Earth's usual air pressure.

但他们面临许生理问题——与人体机能有关的问题，比如减压病——因太快返回大气压强下而导致的一种痛苦的身体状况，大气压强指地球正常气压。

We are dealing with a pressure differential of around 1,000 atmospheres.

我们处理的大约1000个大气压的压差。

OK. Well, if you can, it's really amazing, because my voice is changing the air pressure where you sit by just a few billionths of the atmospheric leve.

好的。如果你能听见，那真不可思议，因为我的声音会改变你身边的气压，改变程度只有大气压的几十亿分之一而已。

We'll start our trip up here on the surface at atmospheric pressure.

我们将从地表大气压开始我们的旅程。

Without the pressure of an atmosphere, liquid water can't survive.

没有大气层的气压，液态水也难以“生存”。

About noon she felt a strange kind of pressure.

大约中午时分，她感觉到一股奇怪的气压。

The hole caused a brief loss of air pressure before being fixed.

这个洞被修复前导致短暂的舱内气压泄露。

For example, the way their atmospheres behave depends a lot on how hot they are.

例如，它们的大气压的变化很大程度上取决于它们的温度。

It had been in use for more than 100 years, but it was wrong.

这个气压值的使用已经超过了100年，但它错误的。

Low air pressure and windy conditions were also linked to painful days.

低气压和风的天气也与疼痛的日子有关。

The steam in the separator drum is too low-- five atmospheres.

分离桶里的蒸汽气压太低了 只有五个大气压。

Because of its smaller mass, there was insufficient gravity to hold on to its atmosphere, the drop in atmospheric pressure was inexorable, and the solar wind swept it all away.

由于它的质量较小，没有足够的重力来抓住它的大气层，大气压力的下降就不可避免的，太阳风把它们都吹走了。