The heavier cloud cover to the north and west of this circular pattern was likely a response to a low-pressure system and to jet stream dynamics.

圆形的云型中，北部和西部云量更多，这可能是由于低压系统和急流的作用。

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And we have, if you will, a low pressure injection system that will also provide water into the core for low pressure. And we have boron that's capable of being inserted as well, as needed.

如果你们可以，一个低压力的加入系统，会给低压力的核心提供水，我们还有硼，它也是可以，被加入的，也是需要的。

youdao

Scattered showers and thunderstorms were also forecast for the Great Lakes region as a low pressure system moves south from Canada.

随着一个低压系统从加拿大向南移动，预计在五大湖地区也将出现散布各地的大雨和雷雨。

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When there is no wind, for example, heat builds up in a city, creating a low-pressure system that pulls air into the city.

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The past two years it got stuck on top of southern England - and that locked a low-pressure system in place which in turn brought misery and rain.

BBC: Met Office cools summer forecast

Miles below, another low-pressure system is brewing.

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