pressure ridge

基本解释

There are less polluted days in Summer, the main weather background is pressure ridge control style.
夏季出现污染日较少，主要为高压脊控制型天气背景；
There are more polluted days in Autumn and Winter, the weather background are pressure ridge control style and airflow by west style.
秋冬季出现污染日较多，可分为高压脊控制型和偏西气流型天气背景。
A high-pressure ridge that has set up over the Southern Plains has been really persistent there. It has pushed a lot of active or violent weather to the east.
阿尔恩特说，“在南部平原区形成的高压脊十分顽固，引起了其东部地区活跃甚至是猛烈的天气现象。”

Second, include a high-pressure ridge off the coast of Greenland is keeping the storm from the usual course away from the U.S. mainland.
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