hypersonic
hypersonicadjective- relating to speeds of more than five times the speed of sound (Mach 5)
特超音速的,超出5倍音速(5马赫)的
- relating to sound frequencies above about a thousand million hertz
特超声频的,声频超过10亿赫兹的
派生hypersonicallyadverb语源- 1930s (in sense 2): from hyper- 'beyond, exceeding', on the pattern of supersonic and ultrasonic
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