A polar vortex is a cold, thick low pressure system. The air turns counter-clockwise when on the move.

极地涡旋是一种寒冷而强烈的低气压系统，气流按照逆时针方向运动。

And these are larger dust storms caused by different meteorological causes like a cold front and low pressure system.

这些较大的沙尘暴是由不同的气象因素引起的，比如冷锋和低压系统。

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

天气是变幻无常的。低气压系统使潮湿的空气上升，冷凝，形成降雨云。

The hurricane begins to lose strength, gradually dissipating until it's reduced to a remnant low--pressure system.

飓风开始失去力量，逐渐消散，直到它变成一个残余的低压系统。

Climate patterns related to high and low pressure systems are what push large storms in certain directions.

与高压和低压系统相关的气候模式是将大风暴推向某些方向的原因。

This forms a low pressure system and Wang says when it moves south, it pushes the polar jet stream off its normal course and forms a second vortex.

这形成了低压系统，而王海龙说当它向南移动时，会推动基地喷射流偏离正常轨道，继而形成第二个涡流。

The wind and low pressure system can also displace water elsewhere, causing a reverse storm surge on the opposite side of the hurricane.

风和低压系统还可以将水转移到其他地方，从而在飓风的另一侧造成反向风暴潮。

And that is the reason why we have winter storm warnings from the southern Plains all the way to New England as this low pressure system ejects to the northeast.

这就是为什么当低压系统向东北部倾斜时，我们从南部平原一直到新英格兰地区都会收到冬季风暴预警。

In the interstitial space, it's the same thing as the blood pressure in the pulmonary capillaries, and because the pulmonary circulation is a low pressure system, the hydrostatic pressure is pretty low.

在组织间隙，毛细血管流体静压和血压相同，且由于肺循环低压，其流体静压也较低。