英语词汇“sonic barrier”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

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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