the obstacle to supersonic flight posed by such factors as increased drag and reduced controllability, which occur when aircraft not specially…
| 单词 | θ107662 |
| 释义 | the world > movement > rate of motion > move at specific rate [verb (intransitive)] > go faster than speed of sound (1) to break the sound barrier1939 the obstacle to supersonic flight posed by such factors as increased drag and reduced controllability, which occur when aircraft not specially… |
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