Aviation professionals classify turbulence from light to extreme, a form they say is very rare.

航空专业人士将乱流分成轻微至极度严重的不同等级；根据他们的说法，极度严重的乱流十分罕见。

youdao

Aviation professionals classify turbulence from light to extreme, a form they say is very rare.

航空专业人士将乱流分成轻微至极度严重的不同等级；根据他们的说法，极度严重的乱流十分罕见。

youdao