The criterion for distinguishing the two regions, i. e. stagnant air region and intensified region is suggested.

建议了区分小间距滞流区和强化区的准则数。

youdao

It was the second air disaster in the region in less than two months.

这是不到两个月内该地区内的第2起空难。

《柯林斯英汉双解大词典》

The Eritrean volcano, which sprung into life on Sunday, sending a huge ash cloud 13km into the atmosphere, has continued to disrupt air travel across the region.

在周日开始喷发的厄立特里亚火山向大气层13千米的高空喷发了大量火山灰，继续影响整个地区的空中运输。

youdao

The International Air Transport Association recently reported that the Asia-Pacific region has eclipsed North America as the largest aviation market.

VOA: standard.2010.02.04

However, he added that this action would not take the form of large scale air strikes in the region.

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But the findings are significant to any region with air quality issues.

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Colder than normal weather is likely on tap for at least another week, as air flows into the region from the north, instead of the south, said Dunham, the meteorologist.

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