| 单词 | clear-air turbulence |
| 释义 | clear-air turbulence (once / 2954828 pages) n WORD FAMILY clear-air turbulence USAGE EXAMPLESThe models forecast that by mid-century, clear-air turbulence will be more violent, and trans-Atlantic flights will hit it twice as often, especially during the winter. Scientific American(Apr 08, 2013) Beyond spilling drinks, severe clear-air turbulence can injure or kill passengers, and damage planes, too—it once ripped an engine off a DC-8. Scientific American(Apr 08, 2013) n strong turbulence in an otherwise cloudless region that subjects aircraft to violent updrafts or downdrafts Hyper turbulence instability in the atmosphere |
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