hypersonic
adjective uk/ˌhaɪ.pəˈsɒn.ɪk/ us/ˌhaɪ.pɚˈsɑː.nɪk/
超高音速的（高于音速5倍的）
travelling, or designed to travel, more than five times faster than the speed of sound
NASA successfully completed its first hypersonic flight since the 1960s.
Hypersonic missiles cut down the time from identifying the target and then hitting it to just few minutes. 超高音速导弹将从识别目标到击中目标的时间缩短到几分钟。
The Air Force is developing a hypersonic engine designed to fly at Mach 6.5 speed, or more than 4,000 miles per hour.
- More examples
- Before passenger-carrying hypersonic planes are developed, engineers envisage more cargo and military uses for such an aircraft.
- In its first free flight, the hypersonic aircraft will be dropped from the underside of the wing at 24,000 feet.
- Some day, hypersonic flight will be perfected, and we will be able to take a plane into orbit without enormous fuel loads.
Compare: supersonicultrasonic