| 单词 | sonic barrier |
| 释义 | sonic barrier (once / 695254 pages) n WORD FAMILY sonic barrier USAGE EXAMPLESBoom isn’t the only player in the race to bring air passengers pass the sonic barrier once more. Time(Nov 16, 2016) One even said that the Sonic Barrier couldn't be installed on Indian Reservation land. Time(Apr 21, 2013) An accelerating, effortless flight, a faint tremor as they passed the sonic barrier, then no sensory impressions at all. Gault, William Campbell, The Mighty Dead(2010) n the increase in aerodynamic drag as an airplane approaches the speed of sound Syn|Hyper sound barrier drag, retarding force the phenomenon of resistance to motion through a fluid |
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