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单词
sonic barrier
释义
sonic barrier
noun
:
a sudden large increase in aerodynamic drag that occurs as the speed of an aircraft approaches the speed of sound and that is no longer an insurmountable obstacle to traveling faster than sound
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nubian
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nubility
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nubuck
nub yarn
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nuce
nucellar
nucellus
nucha
nuchae
nuchal
nuche
nuche fly
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nucle-
nucleal
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更新时间:2024/9/22 10:27:54