题目内容
Clear air turbulence weather is the erratic movement of air masses in the ________ of any visual cues, such as clouds.
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Clear air turbulence is impossible to detect either with the naked eye or with ________ radar, meaning that it is difficult to avoid.
Because aircraft move so quickly, they experience sudden ________ accelerations or “bumps” as they rapidly cross invisible bodies of air which are moving vertically at many different speeds.
Cabin crew and passengers on airliners have been injured when ________ around inside an aircraft cabin during extreme turbulence.
The rotating vortex-pair created by the wings of a large aircraft can ________ or even flip a smaller aircraft on the ground.
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