高超音速 gāochāoyīnsù hypersonic Definitions Defs Origin Strokes Stroke Words Sentences Sents 高超音速 gāochāoyīnsù hypersonic relating to speeds significantly higher than the speed of sound (typically Mach 5 or above); hypersonic speed
高超音速 gāochāoyīnsù hypersonic relating to speeds significantly higher than the speed of sound (typically Mach 5 or above); hypersonic speed
