Read Edit View history Discussion 高超音速 gāochāoyīnsù hypersonic Origin Definitions Defs 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